Honestly I’m more disappointed that this isn’t the first time on Lemmy that I’ve seen someone delete a post and then try to make a big scene about how they didn’t like the responses they got and were giving up on a community.
Lemmy has so little content that your complaint post gets to be top of a community for a while, so that’s nice.
You’re not the main character, people are entitled to opinions, and you don’t have to care or take them personally. It’s the internet, there will always be someone who complains even if it’s entirely unwarranted.