'Leaving' Scooploop
If you just want to not be involved in Scooploop for a while for some reason, you could turn off PMs, so as not to waste people's time, and put some information in your profile. You can then 'return' at any time.
Deleting your account leaves a post with deleted comments, and ruins the post for readers, current and future. Look back on some old posts to see for yourself.
Also, if you are a big contributor in a loop, deleting your account deprives members of any interesting/useful information you have posted. If I were to delete my account, then the IT loop would be almost empty.