Just a random thought, but do people care why other users were banned?
Was reading a post and noticed the OP was banned, didn't really dig though their posts but did wonder what happened.

Does anyone think that the reasons for banning should be made public and shown on every post they made?

The reason behind it is users like this:
https://bitcointalk.org/index.php?action=profile;u=199736

Their account was most likely compromised and posting links to malware:
https://bitcointalk.org/index.php?action=trust;u=199736


However, in many sections of the forum trust is not shown. You are just seeing activity / merit / posts.
So if instead of just posting 1 malware link and getting banned for it, the person who compromised that account could go back through the older posts and change / add links to malware or whatever. Yes the reported posts are removed, but what about the ones made a while ago.

Yes, it's a forum we are not you mom, people should know better then to just blindly click on links. But, still if you see an old post that is still up from a long term member you are more likely to click on it.

Just a thought.

-Dave

Perhaps if such behaviour spreads and becomes a regular way to spread malwares, once the account is banned, the collection of links posted by the account becomes unclickable. This would be a simpler and easier solution, but are such practices common?

Accounts are directly banned due to spreading malware so most of those who spread it are newbie accounts with limited posts.

For me idc, We didn't know each other here personally which means I don’t have any interest on further details on why the user get banned unless he post request to unban and explain his defense or the user is prominent/well known here. But I will not be interested if the banned user is just some random guy that saw when I browse random thread.

I feel it has to depend on the member that was banned, if the member is popular in the community, people will want to know what caused the person to be banned, but if the member isn't well-known, i don't think anybody will care, until they make a ban appeal topic. I believe >90% of ban cases is because of plagiarism, and that is why forum admin does not bother to tell the exact reason.
If i understood you well, you feel that the reason why a member was banned can save other members, e.g if the member was banned for posting links to malware, a "this user was banned for posting malware" banner in the member's profile can save people from clicking on their links. It is not a bad idea if you look at it objectively, but after some months here i understood that the forum wants member's to look out for themselves for scam, malware, phishing, etc, the forum wants member's to identify & learn about them and know how to avoid them, the network is a 'do it yourself one', so people are directly or indirectly taught how to do things themselves, because in their bitcoin journey they'll be exposed to other bitcoin sites, wallets, social media (Telegram, Discord, etc) other than BTCitcointalk, and they'll have to protect themselves there too.

I assume it has something to do with the implicit curiosity of we human beings have to answer our own questions.
Also, knowing why someone was banned can help to keep the forum and its users safe from ill-intentioned people who seek either spam/shitpost around or economically damage others for their own benefit.

Whenever an appeal thread appears here on Meta I take some time to read it and I have also read around Reputation lately, it helps to know what and who one needs to be wary with, in order to protect one's Money, time and even reputation. Actually, the case you show as example could be easily make some people to change their habit on clicking links within the forum for their own good.

I was the one that reported the Account to get banned as he got hacked and posting the malware , the real owner was asking a few weeks ago in the german board some questions.
Thats why i have remembered the Account.

For the editing an Link on a old post and somebody will quote this post , this will count as a new post and would be getting detected from the bot if the link is there already registered.
There have been a few cases in the past with that and they got catched.

And if the Bot dosnt catch them there are still a lot of Users that will find it and report it , i always have my eyes open and looking around .

About to show the reason for a ban i think thats not needed , and i guess the Mods can see that in there List.

Should be always the first to check the or a Link before you clcik on it.

About the reason for the ban, I think it would be something good to have and be known to users who get banned.

In particular about the ban taken due to ban evasion and reported plagiarism, moderator may easily reference the link to the reported finding to banned users. That will help users know what the reason for the ban is and may make it easier for them to create an appeal thread. This would be a great proposal, but I haven't found the link anyway.

I think it just add more work for the moderators so I don't think it's good idea since they're already taking care to handle a bunch of user reports. If there's a user get banned for a mistake, he can just create an alt account and create ban appeal thread to make moderators look into his case. I don't really know if there's a user get banned by mistake because I don't see any ban appeal thread about banned by mistake, all of them are because ban evasion or plagiarism.

Nevertheless, to ban an account, the mod will have looked at the case and determined the reason with some specificity, specificity that likely fits a relatively selectable short list that can be used to derive a conceptual reason (without needing to pin-point the specific details) that fits 99% of the cases. That shouldn’t be much of an overhead in time, and it seems like a reasonable thing to do with regards to the banned account.

As to displaying the motive for others to view, I wouldn’t place it in a location that distracts the reader of a given thread, but rather, somewhere on the user’s profile. As stated by some, a mark or such to indicate that a profile has been banned would be welcome somewhere more visible though.

Reason for banning someone exists but it's probably only visible to moderators and theymos.
Maybe it would be better for transparency if this would be visible for everyone, but I really don't need to see this information.
It's clear that member broke some of the forum rules, and sometimes this is more than one offences.
Only case I want to see explanation why someone was banned if there are reports and complains about moderator making a mistake.