Posts only get edited or removed if they broke forum rules in some way.
You have to ask why any edits have been done.
Did the posts concerned include personal contact details, political content, advertise on the open forums, insult, flame, or defame someone, or contain spam messages of some sort?
Those and dating posts tend to be the most common problems on the forum.
Is the forum 'dry'?
Not really, but its primary intention is to provide information, not be a fun forum.
You are reading Thomas Hardy, not the Beano.