Why should anyone use a random telegram user, instead of an instant crypto exchange like changenow.io or xchange.cx?

changenow.io does not have a good reputation, with so many scam accusations against them^[1][2], some customers were not able to recover their money even with their cooperation, some accounts were closed for no reason, so I do not advise anyone to use them.
xchange.cx -----> https://www.trustpilot.com/review/xchange.cx They seem like a scam, they have negative reviews.

[1] ChangeNow.io (Evercode Lab) - Scam. Illegally holding of 100 BCH (11 bitcoins).
[2] Changenow.io selective scamming