Usually, it takes users several years to establish themselves, and become known as a quality poster, and finally be able to get accepted on the numerous signature campaigns out there. So, while I'm not bothered by your motivation for joining the forum, you will still be required to put in effort, and remain patient if you ever want to participate in one.
Honestly, you could probably get in one of the lesser paying ones sooner, as they typically have lower standards than the others, and this is especially true when it comes to altcoin paying ones, but you'd still probably need to contribute significantly to the forum for any decent one.
Most established users, who contribute to the forum are much more likely to be accepted than someone who hasn't contributed too much, doesn't have quality posts, and is simply just going with the flow. This is because advertisers typically want someone who will encourage others to take notice of their signature, and therefore their service/product they are promoting. Its why in more traditional industries higher
quality or
more followed people are generally paid higher amounts. Its the same here usually, but with an emphasis on the quality aspect.
If your only aim here is joining signature campaigns, better don't even start. With such attitude you won't go far.
I'm not sure that's strictly true. There's probably many examples of a user joining the forum solely for the attraction of signature campaigns, and have become a valuable user of the forum. So, although I get your point, it
shouldn't really be the motivation for joining the forum, but that is just the reality. Money is probably one of the biggest motivators in our world, and as much as you, and I might dislike that its still true.