and also be able to sort by prefixes, so I can just sort all the things in the art board by [VID] instead

EDIT: Nevermind you can sort already, I'm dumb, but will this be being pushed out elsewhere?

For marketing obviously you may need more than one([B][S][T]) in a single thread but how about one for Selling, Buying, Trading and then one just labeled Shop combining the 3. It would be very useful for market threads in my opinion.

Art, Market, Scam Reports... Boards that already have a tag requirement would benefit from it

Yeah...indeed. on market board it should block you from posting if u did not add you prefix

For market u could just make it so u don't overlap tags.
Buy, sell, trade or auction
Its confusing anyway if u have a buy and sell thread. People get confused and its difficult to manage, even by the owner.
Another good feature would be that u can't open a new thread with same prefix if u did not close your previous thread that u had with that prefix.
Solution, close all threads in that section and start over with this rule.

Force tags for Market to remove overlaps may be a good idea. [B|S|T] threads are usually a mess, it never worked out better for me as a marketeer than splitting into 2/3 threads with distinct purposes. However, I would like to hear more feedback from frequent Item Forum users.

This might be a minor complaint but its really hard to see what the tag is from a quick glance, especially in contrast to red bolded thread names

I think it should be bolded or something, but it might just be me