[...]
By the way, how do you verify that the telegram really belongs to Crypto Joker on Youtube? So far I have not found the name of the telegram placed on his youtube channel. Being touched someone with a similar name doesn't mean they are related
Nope, if OP was in touch with a tg handler @contactcryptojoker,
with name matched to each of the letters instead of those copycat scammers (e.g.: contactcryptoojoker or contactcryptojokerr) they're indeed were in touch with the official owner of the channel. His tg username is announced on his
YT profile (
archived)
But, just as
Noorman0 said, it's impossible to tag them with red trust, let alone raised a flag, unless they have an account here. Best you can do, OP, is to pull a lot of evidences, screenshots of conversation with their username shown --use web version of tg for this--, payment proof, etc. to inform people out there who wanted to use their service.
This thread --with an assumption that the accusation has base and proven to be correctly placed-- should appear on google search for those who looks for their reputation. A keyword "crypto joker scammer bitcointalk" will brings them to this thread.
Can you provide those evidences here? I saw you're a copper member, so posting image won't be a problem for you.