I think there are people who don't register site and only just visited anonymously to see what is the site offering but may not get the complete features of the site unless to get signed up to explore the things on the site. Though you wouldn't blame the poster because they don't make proper reach before dishing out information they don't know about, and with this lot of people wouldn't want to even try out the site because already false information has been shared.
You are very correct because from the guy conclusion it sounds as if he hard a convincing evidence that metawin hard not sport bets as claimed in his comments, but in reality he is just bluffing and down mouthing the leading cryptocurrency casino Metawin, although for anyone that is active on social media, Metawin have alot of football related contest on x I think I saw a few if that in the last few Weeks, so for sure many already know the truth from that false statements Made by that guy.
Most times such comments are just made just to fulfil post qauter, since basically he speaks with any form of ingredients of a quality poster.