"et alia" is used to refer to "the others (people)" whereas "et cetera" is used to refer to "the others (things)". So you'd use "et cetera" to refer to the other posts. But if you were writing a list of authors you might end with "et al." to indicate that there are more.
I know correcting somebody's Latin usage is really pedantic even by HN's standards. I'm only saying it cause I find it interesting and want to share, not because I want to correct you :)
https://hn.algolia.com/?q=things+i+won%27t+work+with+