It is a complete abuse of merit.
If you don’t see a single tag from DT, it doesn’t mean that people don’t see what’s happening with these accounts. In addition, there is no rule to flag accounts for forwarding merits, at least without concrete evidence of their alternatives. Don't just think about participating in signature companies, perhaps some people do not understand the value of merit, and transferring it in such quantity was not something important for the sender.
At least as long as these accounts are not active, there is no need to tag them or worry at all.
Although in your case, receiving 2 merits from a user who also rarely writes on the forum other than offering himself to participate in a signature looks almost the same.
But yes, not the same scale.
You can also see how the Elissa~sH account receives merit from those who recently participated in the NotATether competition and received 14 merits from it. Quite a strange interest of newcomers who come to this topic with thanks to Elissa~sH, isn't it?
Only a blind person would not notice the transfer of merit between alternatives that have become very cunning.
https://bitcointalk.org/index.php?action=merit;u=3605965
https://bitcointalk.org/index.php?action=merit;u=112675
https://bitcointalk.org/index.php?action=merit;u=3613705
https://bitcointalk.org/index.php?action=merit;u=117429
As The Sceptical Chymist says, any reward on the forum will be abused.