What an interesting person you are. What is it, double standards? How did you determine who should do what? There are rules, they are everywhere. They are on the stock exchange, in our offline life (a set of laws) and they are on the forum. If I registered on the forum, then I agree with the rules. If I violated - I think they will punish me in some way, maybe they will ban me, lower the trust or do something else.
So why the forum can have rules   https://bitcointalk.org/index.php?topic=703657.0#post_rules  and the stock exchange does not? And if we take into account that the wording of the forum rules is sometimes so blurry that it covers almost all possible scenarios, the forum rules can be read as "If necessary, we will do what we want."
23. When deciding if a user has broken the rules, the staff have the right to follow their interpretation of the rules.
If the agreement with the exchange does not mean anything, then what about the forum rules?

I think the rules are needed, they must be observed - chaos will be without rules.