It is not so simple. There were, and most likely still are, huge campaigns that recruit hundreds of users while there may be not so many good posters, thus the campaign managers which are chosen to run these campaigns might not have any other option but to accept almost anyone who knows how to sign up for a campaign and not make a dozen mistakes therewith...
Forum does have a lot of good quality posters.Just that campaign managers are too quick recruiting the shitty ones.I'm not saying add only members who are as good as DannyHamilton but at least a two sentenced descent post which actually adds something to the topic and not
repeats the same posted in 100 comments above is expected
But some services evidently seem to be quite happy with that. Who is that DannyHamilton, by the way?
On the other hand, the services themselves may be more interested in the sheer exposure their ads get than in the quality of posts
Wouldn't they get the actual exposure if the person wearing the signature seems knowledgeable and fluent?
A good poster can't make more than, say, 15 posts daily on a regular basis, and daily might really be a hefty overstretch. Sometimes you don't feel like posting at all. Shit posters simply don't have such issues altogether, and the service easily gets the required volume of exposure without making fuss over what the members are actually posting and whether what they post does in fact add anything to a discussion. Sheer size may matter after all...
Note that this doesn't say anything about the legitimacy and utility (or lack thereof) of the service itself