For me yes, I wouldn't want it all the time, but after so many years in Germany, feels natural, given that I understand it as good as I do English. I wouldn't say the same if you had written in Kaixana or any other language I neither speak nor can use an online translator with. I however don't think that there should be written rules, unless this becomes a problem.

google translates: It is simply a matter of courtesy that we communicate English in the "quasi-world language". I think that contributes to the Internet in general for understanding and should therefore also here to good sound. Whether you have to write it in any rules I do not know, I thought I can still ask anyway.

Im letzten deutschen Satz fehlt ein Komma.

Oh come on. :-D

Why not? Spanish and German are widely spoken; if people want to use them to communicate, then let the market decide by virtue of the number of upvotes and responses they get.

If you see my comment below in pig Latin clearly the downvotes indicate people do not like it. Despite pig Latin to English translators existing and really there is no difference then any other language I was down voted. As far as I was aware HN is an English site and we should all try and communicate in that language when possible. Websites don’t automatically translate and don’t always do a perfect job of doing it so if we came to HN and had to try decipher all the posts it would quickly become tedious.

according to this: https://en.wikipedia.org/wiki/List_of_languages_by_total_num... , German does not even make the top 10 ...is 12 just after "Urdu". I would not call German a "widely spoken" language.

I-yay eally-ray ink-thay e-way ould-shay all-yay eak-spay and-yay ite-wray in-yay ig-pay Atin-lay ere-hay on-yay Ackernews-hay.