did you know that #mastodon web UI has OCR built in? so when you are posting screenshots of text, a transcription of the text to put into a description of the image is literally one click away. when uploading image into a toot, just klik 'Edit' and then 'detect text from picture'. that's it.
please help sighted people. it's costing you two extra clicks.
some talk about this is at the end of this issue https://github.com/tuskyapp/Tusky/issues/1316