diveguy wrote:Just certain groups. I have people who read all the topics and then post replies just to get themselves higher on the post count.
I know of someone that runs a non-phpBB forum that turned off the post counts to stop people getting competitive about "getting a higher score". Maybe phpBB has a way to do that.
Mind you, there is that special group for newbies (Newly Registered Users) that I think you can setup to only be able to post a fixed number of posts. So I think that the same thing could be done for a user defined group.
diveguy wrote:Really only need useful information posted in the topics.
Why not just make a rule sticky for your forum that states that certain replies (like "I agree.") are unhelpful and that you consider them "spam posts". Then you can ask your moderator team to delete posts and/or warn users that post stuff like that. If these guys bump up their post count by 30 and you delete 29 of their posts, they are going to not get the reward they were expecting.
It would seem to be a lot easier to tell your users to modify their behaviour and maybe to give them a one day ban if they refuse to comply (and then move onto a one week or longer ban if they keep doing it) than to mess about with creating a group that hobbles those users. Tell them to behave, then you have a cause to block them.
If these nuisance users post a large number of meaningless posts, and nothing but meaningless posts, they might
actually be "signature spammers". I do spam patrol on the forums where I work as a backup admin and a new user posted a generic "that is really a good idea" kind-of reply that set off an alarm bell. He had a link in his signature that seemed totally off the topic of our board, but it wasn't a porn link, and there was a possibility that his reply was the result of bad English, rather than him being a bot. So I did a search for him on Google and found that he had thousands (or even tens of thousands) of accounts on different forums and was doing the same thing on all of them. I disabled his account and removed his signature, but I bet he promotes himself as some sort of "forum signature marketing expert" and thinks that every "I agree" post on every forum he spams is giving extra page rank to the lighting website he was promoting. If that sounds like it could be your users, do a bit of digging to work out if they are signature spammers and you could be rid of them forever, instead of looking for a way to slow them down.