@dgar 2 ...
Since then, I changed my name handle to only letters (no special signs, no earth pictograph) and payed extra attention to what I attached to my tweets. And, I am imagining what I would like to know about a picture, if I couldn't see it. Or, try to explain it to a friend on the phone (landline, no video possible).
What is very sad is, when people just put their text from the toot above into the #AltText and think that would be enough. No. It is not.