It is something that bugs me till today. Are they mostly newbies trying to find a path to enter cryptouniverse or experienced people who are just gambling to score a moonshot on luck?

This is the "meme" rank on coinmarketcap, there's millions on deflationary tokens with no effort from the "devs" at all. Just copy/paste a code, copy/paste a whitepaper, eventually pay few bucks for a domain and that's it.
Why people fall for that, yet?
Stopping people from investing shit/memecoins is a very difficult thing to do...
To be honest, I'm actually quite tired of hearing complaints from people who have lost from shit/memecoins investments, but when they first wanted to put money down, they didn't want to listen to advice. The fantasy of high ROI obtained from investing shit/meme coins is very tempting but we all must be aware that it is just a fantasy, not reality.