jvw, 
It's been a while since I mentioned it, so it's probably time to say it again:
If I ⭐'d your post with a photo, picture, video, or audio, but I didn't 🔄, it's probably because I liked it but it didn't have any alt-text.
Mastodon isn't really about "going viral" afaict, so take it for what it's worth, but lots of folks (myself included) only repost media with alt-text.
I think this here bot below 👇 does follow-backs and will send you reminders if that helps.
@AltTextHealthCheck