In my opinion it's doesn't matter how many merit he send to other post, even if the post is only deserve get 1 merit but someone send him 10 merit. At least the post is have "value" and not duplicate from other user post. Sometime,  I usually saw someone send merit only appreciate the authors effort and time to write the thread. And also people give merit to meme. I can't blame and I don't complain about this case since merit is subjective, people can send his merit whatever he want (but must follow the rules).

But, how can AA and  deserve merit? No joke, not fun, and only spam
This case is similar about this topic Merit Abuse?
How can signature campaign application get merit.. And also only 1 merit not 10,20, etc.

I hope you agree what I mean