How to deal with Spam-Users
I recently saw this spam answer which I edited to remove the content and link. Is this what we should do? Or should we just flag as spam and leave it alone?
You shouldn't edit it.
The difference is that flagging for spam is a democratic process while editing is not. Obvious spam is going to get removed quickly anyway.
If you edit the spam posts, other people first have to digg into the history before flagging as spam.
However, there's one case in which you should edit: If the answer provides valuable information you should remove the spam part, because otherwise the good part gets deleted too. I doubt there many such posts.
If it's long and annoying, I'll edit it out besides flagging as spam.
Because I can see deleted posts, so deleted long and annoying spam posts are still long and annoying. And if I hold off until it's spam-deleted, it gets locked.