Please tell me what is blockchain 4.0. Which kind of improvements blockchain 4.0 provides? How those upgrades are better than blockchain 1.0, 2.0, and 3.0? I don't believe in just an arbitrary name-calling like this, blockchain 4.0, does it make sense, technically?

If you join a bounty or have interest to join a bounty, you should pay your attention on its past operations. I meant if the bounty has run for weeks or months, you should check whether it delayed its payments for participants or not.
For example:
If a bounty originally announces that it will run from Jan. to Apr. (of 2019, for example), but then when April passed, there is no payments, and they announce to expand bounty for another 3 months. It is a good signal of bad bounty, and participants will highly not get payments at the end of that bounty.

I would love to see Ethereum takes off in ETH/ BTC pair because I can get double wins by increasing my balance in bitcoin and in fiats or USDT. I damn sure that Ethereum will - at least - move back to 0.05 BTC per ETH for sure.

Do I have to do KYC on Gold platform in order to be eligible to trade on that platform (to exchange GOLD token to BTC or ETH)? The last question is how do I know that GOLD platform actually have gold stored in banks that equal to total value of GOLD tokens?

If you don't have plans to trade daily, you should not store your money on exchanges. Because we all don't know what will happen, right? Binance is a reliable exchange, that compensate for users when the exchange or user account got hacked; but we should not expect such things all the time.

Right! Bear market makes people whom have spare money (hold USDT) happy because they have chances to buy at dips and take profits in short term. In contrast, bear market makes people whom hold bitcoin or altcoins dissapointed, especially if they bought those coins at high prices.

Finally, the Alpha version of SafeInsure coin app has been released, that might help the coin a little bit with its recend dumps on market. The SINS' price actually fell to 16xx satoshis before bouncing back, and currently stood around 2709 satoshis.

Developers of KYD don't care to update the OP, which contains many images. Links to images should be updated to show them to readers. ATM, images crash, and I guess links to images expired or something like this. Anyway, OP should be updated if the project has not yet been abandoned.
Unfortunately, there is one more signal for an abandoned project, the last active day of KYD account is more than 9 months ago, since

In order to be accept on Binance chance, team (if projects already listed on Binance), will have to pay fees for that. I don't think Binance chain will become big if fees are high and maintain at highs like we saw now. Binance is a good exchange, but if teams have to pay huge funds just to switch to Binance chain, I believe most of them will reject to do that.

Low-end hardwares or not, it does not matter. The matter is how to create and maintain good transaction speeds. I don't think that such things will depends totally on quality of hardwares. It is more depends on algorithm and difficulty adjustment algorithm. So, if developers can solve it, and control difficulty increases over time (not increasing too much), crypto currencies can be moved with low fees, and fast speeds; and transactions can be confirmed with low-quality hardwares.

Morever, for investors whom get losses within bear market, it is good time and good chance to learn from real lessons, not paper-based ones, and learn from them to avoid coming ones later. If someone get losses, it will be more heavily lessons for them to remember. Huge losses are hard to accept, so it will also help losers keep those stories deeply in their minds.

One of the most ridiculous and bitter facts is that when bear market comes to the end, people nearly have no spare funds to invest. Because they mostly invest all of their funds months before the end period of bear market. Therefore, they will keep complaining when bear market goes away, and will hope that bear market will come back.

Among project born in 2017, Horizen, (formerly ZenCash) is one of the strongest and most professional crypto currencies. It is not only reflected on the  survival of Horizen over months with Bear domination, but also demonstrated through the development of Horizen. It's the way Horizen team increased privacy of the coin, and created, then managed Horizen forum so well. I saw that active communication between Horizen team and their community is another plus point.

Ethereum blockchain has been fastly enough, I think. Too fast transaction speed might create disadvantages when attacks or compromised occur on network, how to roll back in such cases? I think the most important thing Ethereum network should include is to create better environment for projects that choose to operate on its network. It will help Ethereum become stronger in crypto.

Zcoin is one of pioneers in terms of improve privacy for crypto users. From the article above, I read and found that Zcoin's algorithm has some advantages to over-perform others private coins. It will take time for crypto comunity to really catch the idea of Zcoin and their team's approach to increase privacy.

There is no way to get returns easily, and it is also true for IEOs. Therefore, if investors want to get returns from IEOs, they should spend their time to do their own research on exchanges run IEOs which they have interests in. Good exchanges might run good IEOs for investors. Bad exchanges, surely, will bring bad IEOs for investors.

ICOs have still been good way to raise funds if they come from good projects. IEOs are just temporary hot trend, and will end soon. Because, there are difficult for investors to get good returns from their investments in IEOs of small exchanges. Over time, investors will stay away from IEOS of new created exchanges.

Bear market is not bad, IMO. Because such bear market is perfect place to learn from mistakes, and become more experienced, and smarter investors/ traders. There is place rather than bear market that they can learn real lessons. Textbooks, teachers, all are unable to teach you those kinds of lessons, and can not give you real emotions when you really stay in bear market.

Dogecoin will help us to get profits, if we have enough patience to hold that coin. There are lots of confusion that why such a joke coin can survive over many years in the very harsh crypto market. The Dogecoin, has also had very very high daily volume, and sometimes it ranked in the top 20 on coinmarketcap.com

What should I do to join the anniversary airdrop of Deep Onion. The total pool of the airdrop is 1000 ONION, but how many participants are maximum? I wish that the rule to join the airdrop is easy, and there are so many slots for all to join.