Meme coins and the positiveness echo

I've been slowly stepping into the crypto world, still figuring things out and stuff. But there's something that has sparked my curiosity: all these newborn meme coins are full of super positive people spamming overly optimistic comments in every thread that mentions their coin, directly or indirectly.

One particular case is Kendu. Someone whispers it and suddenly there are dozens of people commenting about how great it is, systematically repeating the same arguments over and over, to a degree it starts sounding like it's a copy-paste message or idk, just bots.

Don't get me wrong, I'm asking it genuinely out of curiosity, but this massive echoing of extreme promises and stuff gives me scam vibes, cause it sounds like a rehearsed speech. I know these coins have no real purpose or usage and that it's all about popularity, but still... Is this exaggerated shill just how it is supposed to work? Like, the default modus operandi for every meme coin?