If this project is a scam then why until now they are still in crypto market list which is one of the trusted crypto guiding site? Maybe we should wait for more update before jumping into some conclusions as i believe that they have just some isolated issues that need a long term adjustments but hopefully this will not ended as a scam too that they are just affected by the bearish market.
https://coinmarketcap.com/currencies/oyster/#marketsThere was on exchange anymore attached in the link you posted.
AFAIR, it was traded in Kucoin before and price has really skyrocketed during the last bull run, lucky for those people who were able to sold their tokens.
We should not be greedy, I have some friends who regretted why they did not sold their PRL tokens last bull run, now they are losing confidence that it will still recover. HODL is sometimes bad, it's only good for the king which is BTC.
Hopefully someone can give some light regarding the update of this project.