Yeah just had it happen to me; tried multiple times to quote a post with an image in it, but when I hit submit it just deleted the post.

Update: deleting the image seems to have fixed the issue and allowed the post to go through.

With images having caused issues at least twice now, I'd be really tempted to guess that someone should check whether there's enough free disk space or not, if that hasn't happened yet. That may or may not have bitten us in the butt a few times where I work... Anyway, I imagine this is pretty basic stuff for sysadmins, but in case it's not (I'm no sysadmin, so I wouldn't know), I'm just saying this anyway in case it helps.

That partially might be the issue. I'm not an expert but reading the chat between our coder (Bandorr) and sysadmin (jlauro) it looks like there is a temporary folder/directory that is used when uploading images and other things to the site. Bots scraping the site might be creating a bunch of temp files (or logs?) somehow, which causes that to fill up. The temp folder/directory appears to empty itself after a certain amount of time.

I believe the sysadmin has worked on a fix for this or is working on one.

The sysadmin is also going to lower the rate limit to the site. One bot was doing hundreds per limit. The new limit will be 60 per minute, so a regular user will hopefully not have issues with this. If you do hit it you might get a 429 error for doing too many requests in a short period of time or loading pages might slow down for a tiny bit.

If anyone still comes across these issues be sure to let us know and I will pass it along to the coder and sysadmin.

Thanks for the update! Nothing groundbreaking here, I guess, but it's interesting to hear about stuff like this nonetheless.