Like it says on the tin. Bummer 
Iām not entirely sure what you mean, ctrl + f works fine for me
Note that the local search will only work on the content that discourse has loaded, meaning not on the whole thread at once. For that you have to use the website search.
Iām using Chrome and it will work on first couple of āreturnā strokes to go to next hit, but either that or about 1 sec later itās like no results can be found despite one being right in the middle of the page on display.
I guess itās an isolated bug.
Hail Javascript!
HTML was designed for writing documents by people who are too stupid to realize that a proper GUI and a well documented format is vastly easier and more sensible to implement than all the shitscum that comes with parsing a horrible, textually-encoded standard as HTML is.
The web is far from designed to handle shit (and I do mean shit) like Discourse. Itās like building a racecar (albeit a stupid waste of time and money) with a shoebox.
If you want to make a āwebsiteā ā as in, something based on W3C standards ā then make a website, not a fusion reactor to power your popcorn machine. -_-
Scroll to the bottom of the page by pressing the āscroll to bottomā button. 
That wonāt work because Discourse only always loads the posts you can currently see. If you scroll down manually past all the posts youāll get them all, but if the topic is short enough that you can easily do that then you donāt need to search.
I donāt know what it was (havenāt taken time to reproduce yet). I was loading the whole page, but also searching for text that was actually displayed right there in the middle of the page. No dice.
I actually noticed this the other day. Since it only loads a fraction of the posts, you can only search the ones that are loaded. Iām also using Chrome but I imagine itās true with all browsers?
Thereās also a search box on the top which will search all of the forums.