"Spam" is a good keyword considering the old temples of the old web. I don't know if back then, some poor dogs were placed in front of a screen to register at message boards (or additonally to solve human-readable captchas).to post spam. Obviously older message boards are vulnerable to these problems. But if the software is open enough to be modified, they should put a mildly complicated set of questions to new board participants. I think MSFN needs an update in that direction too. Dammit, once a week I have to report a spam post, not to mention plenty of users with 0 posts but questionable "homepages" in their profile!
Considering karjalainen.fi, could you try to put these into your hosts file?
127.0.0.1 rekryboksi-v4.appspot.com
127.0.0.1 cdn.relevant-digital.com
127.0.0.1 apps-cdn.relevant-digital.com
127.0.0.1 static.cloudflareinsights.com
And additionally: 127.0.0.1 fiare-prod-thumbor.assettype.com if you don't need pictures it looks like.
There are plenty of sites that can be tricked like that. Some don't let you pass through without JavaScript activated. Fine, that's their home right, but then, the monkeys didn't check if the adverts can be actually loaded, or whether they are blocked by a firewall. Works in 75% of the cases! To get these lists, you somehow have to be able to see, which server connections are actually opened. Pale Moon is a good browser, showing that in the bottom left corner (as it has been always). You can also dig through your cache ("about:cache" in Firefox-like browsers), to see what your browser actually loaded and stored on your disk. Mostly disgusting script stuff!
Sometimes, it's more than just disabling JavaScript. Sometimes, you have to prevent connections to a certain server right from the beginning, to make a badly-designed website useable again. In this case, it's the rekyboksi-v4 that loads more and more content. @Mr.Scienceman2000Could you log-in?