No, he's not.
Destiny 2 has been a great game. It had a rocky start, became really freaking great around the Forsaken expansion, and only started going to shit a bit more recently. But even then, the quality of the base game and regular content updates have been consistently high, even if Bungie is becoming increasingly more scummy on the monetization aspects of the game.
Posts like the one you quoted are not only not being fair to the game, they're borderline delusional; being divorced from the reality of the actual game. The game is still super popular and for good reason. It isn't without its issues; with the primary being onboarding of new players and Bungie's nickel and diming on MTXs, season, expansion, and other regular content pricing. However, none of those issues somehow invalidate the fact that Destiny 2 remains to be one of the best-playing FPS looter shooters on consoles.
The other poster trying to claim the game is ass, but also trying to insult people who actually play and enjoy the game, is just fucking self-indulgent, narcissistic, self-projected vitriol. Likely from a player who tried the game more recently and struggled to get into it because of the aforementioned issues, or because they themselves are shit and need to git gud (yes, I went there).