Unfortunately i think this might be misinformation (not from you but crypto mining blog). The miner stated on the site doesnt seem to support merits mining algorithm. Though, there is a linux only amd miner listed under "cuda experimental" that i cant speak for. Says that if it performs well it could be implemented in the main branch.. that could be the one they meant. Do correct me if im wrong.
Funny that was brought up though as i was wondering if anyone would be willing to share their cycles/s with their processors. With as many as there are on the market im curious at the performence of some of them.
The linux version works great on my Nvidia cards for Merit, I will see if I can dig up an AMD card and compile the AMD miner on linux to see what is available and working.
Edit: Looks like only the 22i algo is available for AMD cards, so it looks like I jumped the gun on this one but hopefully they will have an AMD merit miner soon.