Im a COS holder along with a good number of Binance related projects holder. No strings attached, I believe in transparent projects, a great team and awesome product like what Contentos got doing.
I think the recent COS price spike shows what happens when a cryptocurrency gets more demand due to its use.
You're quite lucky to hold COS tokens, hope you benefited from the pump. I wish the project considers giving other users of photogrid from other countries the opportunity to earn from the event. I would certainly participate if there's any photogrid event in my country.