I added a bunch of the fake browser IDs to the list of bots, hoping among these there isn't one of a real browser (well, some are, but old outdated versions, most likely).
But even with that, these are so aggressive that I don't know if the site can work without the bot filter when they are scraping it. Maybe for some like that I should add a permanent filter then, I'll try to do that in the next days. Hoping that they don't start using real current browser IDs (instead of some that are just similar).

If someone gets blocked because identified as a bot, please open https://ksle1.antp.be/user-agent.php and give the ID that is returned for your browser.