Comment by Groxx

Here's your annual reminder that anyone that says X decision is wrong is wrong, and has been for something like 150+ years.

https://en.wikipedia.org/wiki/Sentence_spacing

There has never been consistency here. Vote with your fingers, space stuff however you want.

And don't consider web tech to be a typographical decision, it's just the only technically feasible option if you want to make something whitespace-amount-agnostic so people can indent their html.