Anyone asking or begging another user/merit source for meriting their posts is tagworthy. I suggest you start keeping notes on who these people are and/or report that to Lauda for their opinion on this.
AFAIK asking for merit is looked down upon.
They aren't asking directly for merit. They ask me to review their posts, and I'm ambivalent about this. How can you tell if a persion is trying to get merits, or if it is a genuine request for advice about posting?
For example - How do you interpret my post about my awarding sMerit. It was intended to give me some guidelines about the general forum attitude to their use, but some may misunderstand my motives. The attitude to merit awards seems to be pretty mixed. I'll probably go my own way, but I can be influenced by good logic.

Asking and Begging wouldn't be good in any way (I'd say let them earn naturally). Don't know but I am seeing threads "trying hard" to impress Merit sources hoping to get some merits forgetting the thing called "Discussion". They will lay down facts which I think they have Googled letting the readers guess what's the discussion all about then the whole thread will became a rubbish megathread.