Telegram is one of the good social media to help a project to be closer to the community,
of course it is not trash, it all depends on the team of the project,
if they are scammers then don't blame telegram.
Honestly I do not understand what the OP said and there is no strong reason for someone to blame telegram if a fraud occurs, it's true as you say if telegram is only a means of communication and of course everything that happens to its users is the sole responsibility of the user, there is no reason for us to blame the telegram, so as a social media user, especially telegram, of course we must be wise in processing the truth about the news or information that exists and not even directly to believe it. and not even blaming the media as it is today.