Re: Change a topic into self-moderated retrospectively / add polls retrospectively
Somehow I think moderators can do it on user request, but if it is not approved then the last advice is lock old topic and create new topic with self moderation. But I haven't found a case like this done before, or maybe I've missed it.
Interesting idea, maybe I'll PM a moderator to ask if it's possible and an appropriate solution. Or a moderator can reply here if it's possible. Most likely, approving such request has a high chance to decrease work for moderators overally, if that's possible for moderators to change it manually. Of course, having such an option available in our edit settings would be the best solution that all comments made from that point of time are self-moderated.
Sorry 1miau, I agree with @hosseinimr93 here: if one posts into a self-mod topic he knows that his post may get removed. This doesn't happen with a "free" topic. Changing this "during the game" is unfair advantage for topic owner.
Once in a while, a user goes wild and deletes all his own posts. It would be much worse if he can delete all other posts in his own topics too.And when we handle it as described to treat all the comments left before will be unaffected, while only new replies coming after the topic gets changed to self-moderated can be deleted, we won't have that problem, when members are deleting old posts.
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Previous comments shouldn't be affected. 
This would make sense, but may be more difficult to implement.
