Word processor flags misspelled words, right?

When I'm typing stuff into the forum, there's a red wiggly line that pops in underneath any misspelled word that I've typed.

Is this function universal among the posting members of the TPT website, i.e., do we all get our misspellings pointed out to us by the website's software, or is this function somehow available to only some of us, and not available to others?

Thanks, Chris, for the hours, days, weeks, months, yetrs you've put into this website. I had to misspell a word to check on what happens when that happens...

[Added later: But maybe this spell-editing is *not* available in the "Subject" entry field...?]

First, you are very welcome.

Second - the squiggly red thingy is a function of the browser you are using, not the website itself. It seems to work for me in any text input field (including the subject of the post).