Editing posts - New type of spam?

As mentioned here I started a new board, so a couple weeks ago added an RSS feed to get some posts flowing. Within a few days a couple members signed up and were replying to these threads a couple times here and there. The new members seemed legit: No home page URL, no signature, no fake signature, American IP addy, nothing to make me think they were a spammer. I even replied to a couple posts.

For some reason, I clicked back to a thread a couple days later and seen the posts were edited to include a fake signature with several links. This is the first time I've seen a spammer put in the effort to post and come back later to edit the post. Heck, the board is dead, I cannot even be ranking well for anything.

I just set the edit time limit to 5 minutes and that should take care of it.

Has anyone else come across this?

 

I've had similar spammers on my gen forums, my mod alerted me to them.
I've put some restriction on this site as far as new users and plan to do the same over there as I get time. Something like no live links till 30 post are made and here X days..

 

The trick is to look at their profiles before that even happens. Most of those spammers have links in their profiles, so to prevent on-post spam, look at their profiles before it happens.

 

Also check there e-mail addys sometime that is a great give away like this
@articletree.info
@thecarbatteryprices.com
@reviewshoesp.info

That is just some

It is worse if they use @hotmail
@yahoo
@gmail
as you can`t tell

 

I've been wanting to block freemail addresses for quite a while but the trouble is to many legitimate members use them. :-/