Some forums have rep points that can give an indication of the usefullness of posts.
The number of posts doesn't tell the whole picture. I mean if Chad Nichols came on and in his first post told someone how to diet, you wouldn't ignore him just coz he only had 1 post.
Likewise, if Patrick Arnold posted some , how shall we say, "chemical information" in his first post you wouldn't ignore that either.
In the same vain, i've seen on forums where guys have 4000posts but they post misinformation and 'old wives tale' info...plus half of their post are them putting
or LMAO on about 20 different threads just to boost their post count....which of course is sad as f**k!!!