Already posted 4 days ago btw: https://lemmy.world/post/16488547

Tragically, this also means that, even after 31 years, I’ve still never ‘get good’ enough.

Speaking of wildly inaccurate:

Not sure Lemmy gets to throw stones (it’d probably miss).

Sorry. Maybe I used the wrong term. I meant to say it’s not part of the CommonMark spec (as supported by Lemmy) - like spoilers, there’s identifiers that have gained popularity, but they’re still not properly official. I did do a quick web-search before I made that comment, which suggested there are some sites that use a single tilde for strikethrough.

I didn’t intend any criticism of your post - I was just cheekily using it to have a tangential ding at notions of Fediverse interoperability.

With apologies for being off-topic …

Lemmy: we’re a Fediverse app, so can communicate with lots of other ones!
Also Lemmy: here’s some non-standardised Markdown, with no indication that it is Markdown, or which variant of strikethrough we support, and a ‘mediaType’ of ‘text/html’

KBIN are 404ing this image for LW.

‘ibb.com bandwidth limit exceeded’ :( Might be exacerbated by federation

Yeah, I know what you mean. That note is misleading, and kinda redundant too - you can physically de-select Undetermined in the UI, but the change won’t actually take if you press ‘Save’.

Most likely reason is that you unticked ‘English’ as a language you understand when you were playing around.

Sorry - that was the auto-mod. It removes heavily down-voted stuff, which normally is something that needs removing, but not always. I’ll restore your comment.

Everything out there (inc. Lemmy) wants to turn any GIF that’s more than a few frames into a movie anyway, so we may as well take advantage.

Well, there’s good news and bad news.

The good news is that Lemmy is now surrounding your spoilers with the expected Details and Summary tags, and moving the HR means PieFed is able to interpret the Markdown for both spoilers.

The bad news:
It turns out KBIN doesn’t understand Details/Summary tags (even though a browser on it own does, so that’s KBIN’s problem).
Neither PieFed, or KBIN, or MS Edge looking at raw HTML can properly deal with a list that starts at ‘0’.
Lemmy is no longer putting List tags around anything inside the spoilers. (so this post now looks worse on KBIN. Sorry about that KBIN users)

Firstly, sorry for any potential derailment. This is a comment about the Markdown used in your post (I wouldn’t normally mention it, but consider it fair game since this is a ‘Fediverse’ community).
The spec for lemmy’s spoiler format is colon-colon-colon-space-spoiler. If you miss out the space, then whilst other Lemmy instances can reconstitute the Markdown to see this post as intended, Lemmy itself doesn’t generate the correct HTML when sending it out over ActivityPub. This means that other Fediverse apps that just look at the HTML (e.g. Mastodon, KBIN) can’t render it properly.
Screenshot from kbin:

Also, if you add a horizontal rule without a blank line above it, Markdown generally interprets this as meaning that you want the text above it to be a heading. So anything that doesn’t have the full force of Lemmy’s Markdown processor that is currently trying to re-make the HTML from Markdown now has to deal with the ending triple colons having ‘h2’ tags around it.
Screenshot from piefed:

(apologies again for being off-topic)

Update: for LW, this behaviour stopped around about Friday 12th April. Not sure what changed, but at least the biggest instance isn’t doing it anymore.

I’ve been coerced into reporting it as bug in Lemmy itself - perhaps you could add your own observations here so I seem like less of a crank. Thanks.

This person has indicated (to me) that they’re not interested in continuing this debate, so please don’t re-engage with them. I’ve also asked them to resolve issues around suspected alt accounts.

I’ve since relented, and filed a bug

okay

I’m only running one process, I’d assume the problem isn’t happening for Feddit.dk.

Perhaps. The lemmy.ca post has a comment in from the mander.xyz admin who’s only running one, and there’s a new comment in this thread saying mander.xyx is one of the instances they see the most duplicates from.

Yeah, that’s the conclusion I came away with from the lemmy.ca and endlesstalk.org chats. That’s it due to multiple docker containers. In the LW Matrix room though, an admin said he saw one container send the same activity out 3 times. Also, LW were presumably running multiple containers with 0.18.5, when it didn’t happen, so it maybe that multiple containers is only part of the problem.