Probation ??

[jakester]

I see that under a few user's status instead of being a moderate user, gold member, or whatever- it says probation. does this mean these users are in danger of getting booted off the site or what?

[Nuclear NASCAR]

It just means that one or more or the forum rules has been broken.  The rules can be found here: http://www.nukeworker.com/policy/forum_rules.shtml
It's intended to be a temporary situation.