Oh wow I'd love to be one of the founders of one of those coins but unfortunately I'm just the pool guy
I confirm ocminer made the pool. very suspicious act for a pool owner. hmm
let me see if i can read between the lines here.
zcoinGPU claimed to have an optimised GPU miner for Zcoin. He wanted to sell it for 0.3 BTC a pop. To convince potential buyers he need to show proof of hashrate achieved through such GPU miner. One potential buyer asked zcoinGPU to put his GPU miner to work on ocminer's pool with a specific username. zcoinGPU tried it by photoshopping but no one was convinced. He then tried to bribe ocminer to help change the name of top hashrate owner on his pool but ocminer being an honest guy denied. So zcoinGPU is pissed off with ocminer and is bad mouthing him.
Conclusion:
zcoinGPU is a scammer trying to sell GPU miner which does not exist.
ocminer has been running mining pools reliably since more than 5 years and have high trust rating on bitcointalk.