Hey Mastodon, I’m running a small experiment here. Please boost for better reach 
Do you add alt-text to your images?
@AlinaLeonova I'm close to "Always" so I picked that one.
The habit of adding alt-text on Mastodon has also taught me to make a difference in alt-text and mouseover-title. alt-text makes the image accessible ('map of world with contacts by PE4KH in CQWW DX CW contest'), mouseover is for context for sighted visitors ('Contacts by PE4KH in CQWW DX CW contest').
The average sighted visitor recognizes the world map but may not understand the dots and lines on it.