There's probably not much point explaining the cultural value of free speech to somebody who thinks free speech is so awful they can't even bring themselves to mention it without using a minced oath, as though they fear even the term itself.
'freeze peach' is a dig at the blatant disingenuity of some self-styled 'free speech absolutists' who are actually dedicated trolls out to upset people. Since you're new here this trope might not be familiar to you.
I'm very familiar with it. It's a minced oath used by those who disrespect free speech so intensely they suspend any pretense of decorum and resort to childish wordplay. It's the same as FOSS activists who insist on writing "M$" instead of Microsoft.
I didn't say it was a HN meme. I think you could benefit from reading the HN guidelines if you want to have a good time here. They're in a link at the bottom of the page.