I've noticed a few recently... Answers that are completely within images. I'm not talking about an image of the result of the answer but an actual tutorial-type answer—text and multiple steps included—as a single image.
A few recent examples:
OP actually changed the answer to include the text and screenshots in the answer itself after I suggested to because I couldn't see the text, so I've linked to the original revision.
A few thoughts against this;
The images aren't mobile friendly. See these for example:
Search can't read images! Internal site search won't return anything and Google searches won't see the answer either. Other answers can show up inline in Google search results like this:
Apart from the case where I actually couldn't see the image properly I'm not entirely sure whether to say anything or not... Thoughts?
Should we advise against this? Explicitly not allow it? Leave them as they are?