In my opinion, it would be better without the signature campaigns, for sure it would be a normal forum without any money involved so most of the users would just post for knowledge, experience, questions, tips, etc.
I beg to differ, i don't think the forum would be better without signature campaigns, let us be honest, the forum activity is going to drop quite significantly if that happens, thus who is going to share knowledge on the forum or answer important questions of newbies about Bitcoin. Signature campaigns and the merit system are two things that have helped this forum greatly to maintain its high standards, to join signature campaigns you must earn merits, and to earn merits you must make HQ posts. Mind you that there are spammers on every platform, and even if there's no signature campaigns here there'd still be spammers, thus if you think spam posts are a problem in the forum, use the "report to moderator" button more frequently.