Memes about programming languages (and programming language communities) die hard so it's probably a good idea to avoid reinforcing them when possible. I read this comment as a sort of implicit variant of "RIIR". Judging by the downvotes, I think others did the same.
Rust probably doesn't even deserve the "RIIR" meme as 1) "RIIR" seems to happen way more often on HN/similar than on mailing lists or bug trackers and 2) much of the time the person saying "RIIR" admits to not even being a Rust programmer themselves. I think it's just a side effect of Rust (justifiably) emphasizing safety, and by extension security, in its presentation, and the tendency of some people to conflate the elimination of a certain class of vulnerabilities with the elimination of all vulnerabilities. To be fair, this poster didn't make this mistake.
Edit: Another mistake that some people make after being introduced to Rust is assume that languages that don't explicitly emphasize memory safety in their presentation aren't memory safe. This poster comes across as potentially making this mistake.
Rust probably doesn't even deserve the "RIIR" meme as 1) "RIIR" seems to happen way more often on HN/similar than on mailing lists or bug trackers and 2) much of the time the person saying "RIIR" admits to not even being a Rust programmer themselves. I think it's just a side effect of Rust (justifiably) emphasizing safety, and by extension security, in its presentation, and the tendency of some people to conflate the elimination of a certain class of vulnerabilities with the elimination of all vulnerabilities. To be fair, this poster didn't make this mistake.
Edit: Another mistake that some people make after being introduced to Rust is assume that languages that don't explicitly emphasize memory safety in their presentation aren't memory safe. This poster comes across as potentially making this mistake.