I haven't really thought about it. I might resort to scanning the comments and doing a Bayesian score. Comments tend to use key words from the meme.
It's not for science; it doesn't have to be particularly accurate.
Also, mutherfuchers should annotate images with textual descriptions for fukcing accessability reasons, but they don't. That's something the Mastodon community does better the lemmy community does.
In large part bc Lemmy does not actually show the alternative text under virtually any conditions (except the source view). Maybe some apps do?
Caveat: PieFed now shows these by default, for posts (not comments).
It's a vicious/virtuous cycle where people want something, but Rust is a super difficult language to work with, so it's unlikely to happen except on a timeframe of a significant fraction of a decade.
Caveat 2: PieFed is written instead in Python, and we get brand new features practically weekly, e.g. lately polls and post flairs (neither of which federate out to Lemmy though, since as you guessed already, Lemmy lacks them).
people with accessability needs are presumably going to use clients and readers that do show alt text, though, right?
I agree about Rust. As popular as it's becoming, it's still nowhere near the level of other languages. That means fewer users to contribute to projects, which means slower changes. And, yes, compiled languages development is, in general, slower than scripting language development. How does this impact posters adding alt text? I don't see three connection.
Presumably? But I don't know which ones those are, and I think whenever I've asked, nobody else seems to know either. So it's definitely not a central part of the Lemmyverse experience, even if perhaps it is more so in the Mastodon one?
Nevertheless, I always add alternative text, even if just to indicate that an image is present. But most people don't, and furthermore even if they did, I wouldn't know the difference, bc I can't see that text most of the time (except for posts now from PieFed, but not comments - and yeah, most posts here seem to be lacking the alternative text).
The connection is that people are barely aware that Alt text exists - it is not shown, hence they ignore it. If Lemmy were to show it, then it could become a greater part of the experience. Otherwise, why write it when >99.9% of the recipients will never know that it's there - and if there's a typo even you won't know that, bc you can't readily see it yourself? This is a case where the tools provided by Lemmy don't make alternative text usage popular bc it's very difficult to use. If the tools were better, then more people would use alternative text.
It's absolutely more common in Mastodon, and it's a common feature of clients to prompt for alt text when a user is posting an image. It's as much cultural, and is considered good etiquette. I agree that software would dramatically affect this, not by showing it by default (where, for people who don't need it, it's merely distracting) but by recommending it when posting. You're absolutely right that it'd be more common if folks were reminded of it.