You have a lot of conflicts from different casino as I can see through your post history. My experience with Duelbits is great. In fact, I have some friends whom also played there as they have seen me playing on the site.
I had multiple withdrawals on my account. I also have some losses, however the win is greater. All these withdrawals are processed almost instantly the time I requested it. The only thing that takes few minutes is the blockchain to confirm the transaction. So for me, I think Duelbits is one of the most reputable casino on the industry.

In my opinion, if there are some accusations casino need to address it and clear to the public what happened to the case. If it's real or nor, they can always prove it. But yeah, it consumes some important times of the casino but generally, I would prefer that they give their side from the accusation that is being directed to them.
As for those that give the accusation, public shouldn't just believe into it if the whole story is just pure allegation without any evidence.

I mainly use Discord for me and my friends to communicate (through voice call)  while we are playing different games. We also use it to stream our games.

Similar with the OP's experience on Discord, I also encountered some of his concerns. I could add that it is hard to log in sometimes to verify your account. I'm not sure if it is on my end but sometimes it is frustrating when some errors like these happens.

These bonuses are always useful. I am basing on my personal experience. To support these, I have seen also streamers that made huge profits from their balance that came from lossback, rakeback (daily, weekly, monthly, etc.) So to me it is really understandable for some player to look for these things from a casino before making any deposits to it, I have noticed it usually with big gamblers.
Bonuses are different from faucets.

That could be one reason. But with that amount of withdrawal (in your example, $500) the casino could just disregard asking you to process a KYC to them. It really depends on their management. I believe there are reputable casinos that rarely or maybe even are not asking for KYC regardless of how much money you are having on your balance. I may be wrong, so please correct me if I am wrong with this statement.

The driving force behind that will be money. They earn from advertising them even though they do know that the company has a really bad reputation and continuously scamming people everyday.
They are greedy and do not care to people that might become the next victim of their casino.
I think very few of them play also. On the other hand, most are just for the signature campaign salary.

I guess there will be some promotions regarding that one sooner or later. It could also be some promo codes, a contest, art competition, doubled odds, etc. I bet this time, they're planning it already. I might be wrong but it's a good way also of letting the Duelbits community of them having partnership with Aston Villa. If it happened that I'm wrong, it is uncommon for them to do not launch such promotions.

My preference for my casino balance is on a fiat currency. It is always in a USD ($) currency as it doesn't cause me any time for conversion compared to it being in cryptocurrency, specially bitcoin which has a great value. So every $ there is just a part of 1 bitcoin which means that if you have a low balance, the display will be longer to read, though most casinos are using mBTC with regards into that, still it's not a preference for me and it's weird to play and gamble when the balance being displayed is not on fiat. Even other fiat currency like Yen, I do not like my balance to be displayed like that. I'll always go with USD. On top of it, this choice will always differ from players' preference.

This is literally a shilling campaign. All those positive reviews that you can see on 1xbit's Trustpilot review page, are completely from their campaign. These reviews are published in less than 3 days, the latest publication of a positive review was 19 minutes ago as of writing this post. I hope Trustpilot do something from this. Or this will somehow damage their reputation as a review site. Regardless, a wise man can identify the difference between real and fake reviews.

The Telegrram group is up. However it doesn't have have that much members. If I remember it correctly, the last time I visited the group (not joined), the number of its member is only at a single digit. So I don't think the OP has achieved his goal with these number of people joined to the group.

Here's my entries.

1. Bet Beauty. Betnomi.
2. Delightful Betting Encounter


Edit:
"The slogan should be simple and consonant!"
Just to ask, about the consonant, you are referring to that of the first letter's of every word right? So it should have no words which first letter comes with a vowel.

First time ko makita itong larong to. Ano ang tingin ko dito? Para sakin ang game/design/consept ng project na to ay inspired sa Axie Infinity, rplanet, at Starbots. May pagka touch din ng Pegaxy pero hindi ko sigurado.
Pano tokenomics nila? Magkano, up na ba yung game? Sang device sya malalaro currently at balak nila sa mga susunod na updates? Magkano minimum investments if ever may gustong mag invest para sa game na to?

That might be one of the reason. But keep in mind that channel and group owners can also have some profits. So if ever, hackers can also be attracted to that and possibly be able to steal lots of money. Telegram users should still be cautious even though this app has a good encryption. Hackers will be able to find your vulnerability if it is existing.

Roulette is one of the fastest way for the 10mBTC requirement to be completed in shorter period of time. But it has higher risk that you'll lose more often for every round since you're covering a lot of numbers/groups. In baccarat, it's a fine one, but it is not a fast way unless you wager high bets on two or more options.
I suggest you not  to chase this wagering requirement and play for where you think you can thrive or even win more.

I agree. They casinos will require you to pass some KYC documents when you cheated, or if your transactions on the casino including the deposits, withdrawal, and any bets are heavily suspicious. I do not know exactly how can the track it but I believe they have the tools that are needed for that matter.
Some casino even not regulated forced you to pass a KYC in order for you to be able to withdraw.

That's not the actual point. Most users use VPN to have a private connection and/or access those games that are restricted from their current region.
I believe, the phrase that you've quoted from Duelbits' TOS, in general, it only applies for those people that really came from banned countries of their business. Not those who use VPN just to access other providers. Correct me if I'm wrong.

It's famous for Americans of course, since Nancy is the speaker of the house. But for some people outside the state, it might not be. So this type of betting prediction targets USA citizens intentionally or not.
What could I suggest is that, pick topics that most people from around the world can relate easily. If you just want to take the advice.

These two casinos (1xbit and 1xbet) are sister companies. Both are from Russia. Also both has very bad reputation here as well as on other forums and reputable review sites. Just like what others said, I will advice you to assess them properly. Avoid playing and making your next deposits there before your decision.
Roobet, Duelbits, Rollbit, and Stake are few of those that you can play with less/no problem. Goodluck, do some background checking first too before depositing any amount.

There's always this quote, "Take profit when you're happy". I know you are aware of that. I mentioned it to make you consider having this option for your trades. Me personally now will go most of the time in taking profit and also most of the profit will be reinvested if I do not need to expend it. If you took a profit and the token suddenly went up much more, maybe you should just move on. Or if you're trading futures, you know what to do next.

It's a good and somehow a passive business for you. It's basically, people will be registering through your referral links from various casinos, in which you have commission for every referral you made. So part of that commission, you will give to the user that used the link. It's nice I can say, for you and the player since it is really an extra "rakeback". We just hope that you will really pay those players that will use the links you've provided.