Here is the accusation ; https://bitcointalksearch.org/topic/scam-alert-vinexbtccom-is-a-scam-mlm-promoted-by-trading-crypto-coach-5202818
That a Telegram channel advertised a ponzi scheme so called "vinexbtc". I think that website already scammed users and skipped as well although website still live and we should be careful.
I a result all subscriber of this channel who had invested by their invitations report that channel. And as far as I know only that channel advertised this scam. And eventually Telegram marked them as scam channel.
So your report would effective to prevent scam. Every channel and telegram group have report option. So whenever you will see any possible scam then you should use it. Whenever someone suddenly add you on any channel or group then don't just report as a spam. See group if anything is scammy there then use report from upper right corner. You may report other and describe about their scam.
I think only that guys who is so called "Trading Crypto Coach" is behind of that scam. Most likely he have scammed his subscriber. Every day he had pushed to invest. When I have seen his message some times I thought, "am I missing something?". So imagine now who do no have idea about ponzi scheme they will invest blindly. So I am suspecting lots of subscribers got fucked of this channel.
Here is fucking excuse from scammer,
So guys please use report to prevent scam. Just don't make spam report, report manually them as a scam. When so many report will receive then Telegram will marked them as a SCAM.