Reddit uncovered a thread from 1999 about people basically just saying Spongebob is trash.

[Graperpetual Pretzel]

Many of these reviews are laughable looking back. Here's a review from 2006:

Really goes to show you don't appreciate something until it's gone

 

[meko1432]

Many of these reviews are laughable looking back. Here's a review from 2006:
View attachment 17720
Really goes to show you don't appreciate something until it's gone

this review is funnier than season 8