You know, you might want to try another approach than doubling-down on sarcasm if you want to actually get something out of this platform. You kind of get back what you put in, in terms of effort of the comments and such. Or, continue whatever you're doing, it's clearly fun to you in some way :)
It's not sarcasm, he is just following the usual behavior of people on the internet that can't admit to being wrong. Instead of just saying "oops", they go all in on stupid.