mersenneforum.org - Why do I sometimes see all the <> formatting commands when I quote or edit?

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- - Why do I sometimes see all the <> formatting commands when I quote or edit? (https://www.mersenneforum.org/showthread.php?t=18058)

Why do I sometimes see all the <> formatting commands when I quote or edit?

Occasionally when I want to edit one of my posts, or respond to a quoted post from someone else, the editing box explicitly displays the angle-bracketed formatting commands (e.g, " " or "" and "") instead of simply applying them to the text. If I don't do the same in everything I add to that post, the displayed result is messed-up. So far, I haven't noticed enough of a pattern to characterize the once-in-a-while circumstances in which this happens (but it's happening to me right now). What might cause this?
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Example: I didn't write the "&amp" or ";quot" or ";lt" stuff shown in the paragraph above -- those replaced the simple quotation marks I actually wrote.
(When I first edited this post to add the paragraph immediately preceding this one, it had quotation marks explicitly shown when I posted the revised text -- but now that I've edited the post yet another time to add this third paragraph, those marks are replaced by the amp, quot, and lt stuff)

:kitten:

[SIZE="1"]Fish1: Va Puebzr jr nyjnlf frr gur sbeznggvat pbzznaqf. Jr qb abg xabj jul.[/SIZE]

[QUOTE=Xyzzy;336127]:kitten:

[SIZE=1]Fish1: Va Puebzr jr nyjnlf frr gur sbeznggvat pbzznaqf. Jr qb abg xabj jul.[/SIZE][/QUOTE]

Angle brackets show in the edit box, but not in the displayed result now.

Further observations:

Earlier this morning when I tried to browse mersenneforum.org, I got an error message about database-something-or-other. A few minutes later, when I retried, I was able to log in.

When I tried to post a response on a thread, I got the same strange editing behavior as I reported above. (Explicitly displays the angle-bracketed formatting commands and the " quot " substitutions for quote marks (e.g, "" " or "" and "") instead of simply applying them to the text.)

When I replaced all the "& quot ;" with just quote marks ("), the " marks stayed there and were posted. But when I edited the post to add something, all the " marks were converted to "& quot ;". I spent, maybe, a half-hour laboriously fighting the formatting in order to get a decent-looking post.

Then, when I went to another thread, all the post-editing was back to normal (as in was in the first thread, also) and was still normal as I composed this post. But when I clicked on "Submit Reply", the quote-substitution was back again, as you can see.