If we see the activity here, carefully,  a lot of members are involved in merit abuse at small scale as well. I was checking recently merited posts and came across one such case.

Profiles involved:

https://bitcointalk.org/index.php?action=profile;u=1100353
His merit summary : https://bitcointalk.org/index.php?action=merit;u=1100353

He gave and receive merits from the profile: https://bitcointalk.org/index.php?action=profile;u=1100122

Both the profile are registered on August 08, 2017

Other profile that may be involved

https://bitcointalk.org/index.php?action=profile;u=1501634
https://bitcointalk.org/index.php?action=profile;u=1501624

Both these registered on December 23, 2017

Many profiles may be involved. I am sure that if I give just one hour on this, I can point out at least 100 such more profiles.