"I have now joined Fleetmon: also a website with beautiful and good photos from all over the world."
Pieter, you haven't joined Fleetmon now, you've joined Fleetmon already back in August 2019....
... which is a fine website for anyone who just wants to upload photos and not be bothered by reactions of other members of this website to your photos (Unless you play the "If you give a like to my photo, I'll give a like to your photo" game on a daily basis with each uploaded photo by other members. And even if you don't like it, make sure you're giving it a like).
Don't care too much about photo comments on Fleetmon, the only true currency is likes.
I got fed up with this game on Fleetmon about two years ago. You upload a good photo of ship X and get 15 likes and two days later another photographer uploads a brutally enhanced or drab photo of the same ship and the likes for this photo go through the roof. And this happened again and again. Thanks, but no thanks, I've got my pride, too. In the Fleetmon "community" (which in part I like to call the Kiel Canal/Cuxhaven Mafia) it's not about the photo, it's about who uploaded the photo...
But that's just my personal experience/opinion on/about Fleetmon...