I see lots of people saying this, but what exactly is bad about Spongebob in later seasons? I haven't watched it in several years myself
Early SpongeBob had a lot of clever jokes that would come across as random for kids but adults would understand.
Nowadays it's only random.
Also the characters became worse. Patrick as example used to be naive and a slow thinker, nowadays he's only dumb.
There's more, but those are my two main complaints.
Not to mention, that Spongebob is now literally gullible and cries every other episode, Mr. Krabs now only wants money with no regards to anything else, Squidward is just "I hate Spongebob" and nothing else, Sandy is just science, and not to mention all of the faces, moments, and animations that seem like something out of a 4chan photoshop or creepy pasta.
Squidward's toenail, an episode of nothing but trying to keep a straight face that's incredibly unsettling, a cut ending where Squidward looks like the had a siamese quintuplet with a bunch of characters that looks like it came right out of a Binding of Isaac Spongebob boss mod, I can go on.