Don't assume to have known much just because you have rank up, but exercise patience to learn well and be more useful to the forum, this will also help you have more quality post than chasing cloud.
This is not a rule but a timely advice to newbie who wants to keep their posting reputation in good standard.
One meaningful post is better than 15 to 20 post that are low in quality just to fulfill signature requirements.
It's not wrong if there are members who have reached a rank that has met the rules to register for a signature campaign because it can motivate them to maintain the quality of their posts. In my opinion, not all of their actions are bad but don't just expect payment.
If OP's post is considered advice or reminder, then there have been many topics like this that have been created on the forum.
I will not judge all members of this forum for making posts just to get paid from the campaign they are participating in because there are still many forum members who write for other purposes.