Registered Members Deletions
Many visitors happen upon the site and register to look around. Many of said registered members then don't return. That makes for unneeded member database clutter. I do cleanup every so often and delete registered member profiles that haven't logged in for... 3 months, 6 months, I dunno, whatever I feel the length of time since last activity should be at the time of cleanup. Also if said inactive member has never contributed anything in the way of sharing uploads, commenting, etc., I usually don't give that long before deletion.