Wakarimasem was a 4chan archive site that as of today no longer works.

Thing is it's not even the only site that does that and some of the others do still seem to be active, Wakarimasem was just newer so had less shit to search through [good thing/bad thing/good thing] so would work faster/more often [good thing] although wouldn't have the same back catalogue to search through because it was newer [bad thing]. However that also meant it would have less stuff that would get you v& if you happened to look back far enough [good thing] and end up in the wrong threads.

The reasons given in the OP pic aren't surprising, though. It's more or less the same thing LibsofTiktok got attacked for albeit on a more autistic/4chan level where archives could be used to prove previous posting history from tripcode or even to search image hashes if arguing stuff wasn't OC.

And that's just a few of the things the archive sites can do: https://i.ibb.co/8KGw2GY/stuffs.jpg

• Search the archive history of the boards listed

• Limit results to posts made by: Mods, Admin, Devs, etc

• Limit results to posts with or without images

• Limit results to posted that have been deleted, as well as show the time the deletion was made

• Search for image hashes to see if a particular pic is OC or not. Only really relevant to posts where people post claiming to be the person in the pic as you get a lot of larpers reposting stuff from both other anons as well as random shit from Reddit and other places.

So it shouldn't be surprising if it was taken down because some 4chan sperg got pissy they were being called out on their own behaviour with examples and went the SRS route of spamming boards with illegal content that the archives would then pick up with their scrapers and then reported the archives afterward.