this post was submitted on 15 Jun 2026
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I am frequently on Piefed (Lemmy) and occasionally on Mastodon and I noticed they use ALT tags for images way more on Mastodon than we do here.

Anyone know why this is? it is more about the software or the culture or maybe just historical?

It seems like a good idea to always set the ALT tag for an image post on both services, and I've seen many ppl on the other site say they won't boost (share) any image posts without ALT tags (since vision-impaired people really benefit from them).

Just curious...

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[–] insomniac_lemon@lemmy.cafe 3 points 2 days ago* (last edited 2 days ago)

I don't know if it's different elsewhere, but as a mainly-comments poster I'd add (w/Lemmy) that the 'uploads' section doesn't store alt-text (e.g. copy markdown) either. So if you had a reason to use an image multiple times in comments it's either re-write or copy it from an old comment source. Putting multiple images in a post might handle that better (things other people might actually use too), not so much for niche and/or personal art/technical stuff... and it also assumes a user can still find it.

Also, it probably doesn't help that it isn't given a tooltip when hovering over an image in a comment like it does for post icons (average users will only notice the lack of alt-text if they specifically check for it with: 1. view source 2. inspect accessibility properties).

I do try, sometimes I don't add it especially when it feels complicated to describe and/or I it seems like there's probably enough words for context already. That and I'm more likely to do it if I made the image. Tenor is an exception because there is possibility of it providing a content description I can copy or at least re-work, but half the time it's garbage.