That is a decision for Rob to make. I don't know if it is possible to monitor a probationary period for new members, but we do warn people who post gibberish just to get their post counts up. The blatant spammers and people who lie about their locations get banned as soon as we see them. I've been here for less than 15 minutes this morning and already banned 6 spammers.
There are a lot more spammers and crappy posters than there are mods. The spam seems to come in waves and it looks like bots are getting through to post some of it.
We are working on it.
"Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote." -- Benjamin Franklin