Yes this happens. I have noticed that there's a typo detector in the site. I have one with my browser but sometimes the site overrides my typo detector. When my browser detects a typo the word is underlines in a red dotted line and when the site detects a typo it's highlighted in light red.
(my working hypothesis) I suspect that comments on this site are occasionally slated for review (someway, somehow) and when reviewed the site's auto-correct kicks in and edits the post.

Yes. I especially notice it happening to my profile bio. Once in awhile words go missing and what I wrote makes no sense anymore. I just have to go back and edit every now and then. I've had whole comments in posts or responses in messaging go missing as well.

There may be an add on to your web browser that auto corrects. The site never changes words for me.

Yes. Regularly.

If anything, I'm becoming more creative with word choices. As a published author, I'm constantly editing.

Last night I made it to Level 8. Wrote a "Zippy-dee-doo-da" ditty. I'm terrible at writing headlines. So, I changed the headline four times:

Made it to Level 8! (boring)

Excitement followed by a T-shirt (kill me now)

A Small Celebration (zzzz....)

Looked up synonyms for "small," and settled on a lively, amusing headline:

Itsy-Bitsy Celebration

Done.

It's divine vengeance. Clearly this site has angered the Gods.

I have noticed it and it could be me. We all do typos. What I think it is really is this site correcting (or trying to correct*OR your app or computer trying to do the same. It all depends on what is in the programming. Sometimes I find that the word "up" is always wanting to be "un" or vice versa. It's like some insane built in auto correct or AI is operating. In many posts that I don't pay a lot of attention to women run ads that read "am a down to earth woman and am looking for my true love long term." Where oh, where is the word "I?"

Another example here is that I did not mean to go bold here. Something happened and I'm not sure what it was. I'm letting it go rather than redo it.

Happens to me all the time. So often I've typed "While I disagree with your right-wing opinion, I respect your right to hold it" but it somehow turns into "you're a moron, so shut up".

wow it appears i am not alone! (that's not a religious statement, of course!)

g

I haven't had this problem at all, unless I just didn't notice it.

Yup, I thought I was losing my mind.... I guess not....mmmhhhh

This happens to me also. A while ago I noticed my profile had all the 'to' words missing. Also the edit functionality wasn't working for the longest time, so anything you noticed that needed correcting after it had posted was unable to be fixed. Youre not crazy, it's a glitch.

I din't seam two have and of these tipo issues hear

This does seem to be a reoccurring bug on this site. For a long time it happened with certain combinations of letters, especially "ng" in bios.

Yes, it happens all the time...sometimes I can’t be bothered changing it to the right thing and just leave it.

These are not the droids you were looking for.

Knot atoll

Had a problem with multiple letters for a bit . It was like the keys got stuck and every letter I typed , showed up multiple times . Whatever the problem was , it's now cleared up .

Oh yes! Someone else mentioned this as well. Some times I find entire words missing! However, we are all smart enough to figure out what someone is trying to say.