Please archive all links in case they remove evidence and find better proof of connection between accounts onix and onix213
Also, accounts onix213 and salahazert didn't exchange merits between each other, as I see account salahazer has never sent or received merits.
I didn't know it was etherdelta address.
It was onix and onix123 that is exchanging merits.
Here's a transaction that they have their address linked:
https://ethplorer.io/tx/0xd3fe0307aa14bd958bab9ae8d49659635e595745dddeb842d3029705113fc884
https://ethplorer.io/tx/0x21f4252f8334f335492e186fa65d2136f531593c64472fa48b1044bed18027ff
https://ethplorer.io/tx/0x62d385d7d20b65ec73b59cff9247a171426eaa8f510c80501a119a8c3303ba22
https://ethplorer.io/tx/0x4592c65fed7d208923c3d16f211669c96544225ecbd400420d4737753c6b0607
https://ethplorer.io/tx/0xd119e200b2d3f1dea968a79871fe051bc608162a18de16b3a6baf8aa94ef91c7
I've also updated OP.