Sometimes I make an offhanded comment somewhere and mention that I'm blind, and it seems like everyone who sees it has to chime in and ask how I could possibly be using the internet. I wrote a
$1 about this recently, which does address the problem of assumptions but doesn't go into much detail about the technical operation of a screen-readder—I figure this subreddit already has that for people who want it. But sometimes I hesitate to mention the fact that I'm blind because I know these questions are going to come flooding in, and I don't want to deal with them.
So from now on I'm not going to worry about that. If I can't or don't want to answer, I won't—but I usually can and will. If people are really curious, they can take 15 seconds to Google it. If not, they still know more than they would have if I hadn't mentioned blindness at all. I know not everyone enjoys answering questions, so maybe there are people who need this more than I do: