Just having a user option to replace the icons at the bottom of a comment with text would achieve that.
It would achieve that, assuming users are okay with switching preferences every time or just always having text.
But having that kind of thing as an option would be silly, and having it as an option as a solution to this particular problem is... kind of cringeworthy.
I think it'd be a good idea to keep a list of the ways we'd like to see LessWrong improve, sorted by popularity. Ie. email alerts for new responses.
So if you have an idea for how LessWrong could be better, post it in the comments. As people up/downvote, we'll get a sense for what the consensus opinions are.
I think there's a pretty good amount to be gained by improving LessWrong.
Note: I say "ways to improve" instead of "features" because "ways to improve" is more general.