I really don't think so. Users who made posts with malicious links are considered as threats in the forum, and according to the forum rules, these accounts will be banned permanently. With such users and their malicious posts, forum moderators will do the easiest moderation by nuking these users. They will not waste time to delete all posts of such users...
I don't think you understood what I was trying to say. If I quote this post of yours and share it somewhere else and the admins ban/nuke you, my quote remains. It's my quote and my post, so nothing will happen to it. That quote could contain a malicious link (the reason why you were banned) that remains visible on the forum even after you are gone.
and malicious links can be add to forum blacklists.
If mixer links can be blacklisted, and can not displayed, malicious links can be treated very similarly.
They can, but I am sure that theymos does this rarely and only in special cases like when mixers were banned. For sure he doesn't update such a blacklist every day by adding new links and keywords to it.