Whenever a topic is created and you take your time to read from the first page of that topic to maybe the 4th or 5th page, you will be so much amazed at how people react to matters. I have read the where a full member was suggesting that newbies should not be invited to the forum because they come only for money either through signature campaign or bounty. Yet, the person is a full member and the wearing signature.
Another person said that this forum is not about signature and contest but this same person also in enjoys signature campaign and also join contests, so I am not just understanding the whole thing.
There is no specific thing about the forum but it's about bitcoin and it's about earning and it's about everything, is about liberty. Allowe people to enjoy the forum while it last.
Nothing lasts forever so the signature campaigns too.

No offense just my guess though, but talking about the opinion of members who contradict their own principles shows most likely they are posting to meet the weekly quota, am I right?
Everyone should begin from scratch, bitcointalk is one hell of a place where you can learn a lot about money, bitcoin, and many other things so if someone has the opportunity then hopefully they will use it wisely. Keeping the traffic coming in is also important for the forum or else it will be left stranded so its a win-win for both parties.