HN separates trailing dots from URLs, so that you can have working URLs at the end of a sentence. Hence you have to percent-encode trailing dots if they are a necessary part of the actual URL. (Same for some other punctuation characters, probably.)
This behavior is common for auto-hyperlinking of URLs in running text, so it’s bad practice to have such URLs.
HN separates trailing dots from URLs, so that you can have working URLs at the end of a sentence. Hence you have to percent-encode trailing dots if they are a necessary part of the actual URL. (Same for some other punctuation characters, probably.)
This behavior is common for auto-hyperlinking of URLs in running text, so it’s bad practice to have such URLs.