To be fair, whoever runs that account probably wasn't even born when that episode aired.
Bikini Bottom Twitter
Are ya ready kids?!
And probably saw like, a few episodes to prepare for the job interview. Corporations won't hire diehard fans if someone has the skillset they want instead.
Why isn’t a simple web search included in the required skillset, I wonder…
Out back of the house, the backyard is closed in by a square of flowers, much like the ones seen in the sky.
https://spongebob.fandom.com/wiki/SpongeBob_SquarePants%27_house
We've seen Spongebobs backyard plenty of times
Squidward choking on the fork still makes me uncomfortable
Delete the post or delete the account?
Yes
Turn in your bubble wand!
Get lawyered.
Hell you see it in the reef blower episode, one of the first two episodes. You see his backyard before you even first see Sandy.
This guy sporolates!
The official SpongeBob account does not seem to be presenting "backyard does not exist" as a fact, but instead presents "you have not seen the backyard" as a very likely possibility.
Adding the fact to the original post is fine, but nowhere did the original account claim anything that should get a snarky "You might want to delete this account hurr durr" response.