Thankfully the merit abuse thread created by deadsea33 is locked.
Nice discovery OP. Few of those indeed are questionable, so i'll put them on ignore list for now.
The person currently controlling the deadsea33 account made that thread with the intention of merit abuse. If you ignore them now you will not be able to read their (probably laughable) replies when they post a defence denying wrongdoing.
Slightly OT but that really is the rub isn't it.
If I made my full post quota here every week (I don't) the amount of extra money is nice. But it's not going to make a difference in my life. Don't get me wrong $7500 a year is a nice income to post where I was posting for free anyway.
But, for people in other places it is life altering money. So they get greedy and want more.
Think about it, if you can make more then the national average where you live posting here then farm a few more accounts and make even more.
And then you try to make even more money and.....
That is exactly what it comes down to, money.
A large number of members participate in signature campaigns and there is nothing wrong with that. For some it is life-changing to earn more in a month here than in their jobs therefore they mismanage the situation. If they have farmed accounts which are not used for merit abuse, revenge feedback, inclusion/exclusion or DT manipulation and they post enough to meet quota for their campaigns then that is different from using the Reputation board trying to remove a negative tag and getting noticed.
In many cases at least signature campaign participants have contributed positively in some capacity to this wonderful forum of ours but when the greed (as you put it) takes over they lower the bar with low quality participation via their posts and that too can be seen.
Unless they ban sig campaigns all that can be done is fight against it as best we can.
-Dave
Thankfully some members are trying to use the Reputation board to post about these types of things, there is no other option.