It seems that the color of the names of deleted users is now blue (used to be grey or black I think; example: user210003 in the comments to this question).
I don't seem to be able to find the question requesting feedback on the rollout of certain changes to the site from 2-3 weeks back, so I'm unable to check if this is known, and was declared "status-by-design." Even if, why? I fail to see how this improves anything. All it does is taking information in a bit harder. Or is this a mobile only issue?
I suggest it be changed back.
Edit: Based on some feedback in the comments, this appears to happen under at least two so-far identified conditions:
(1) for site-wide deleted accounts, on mobile always (but not on desktop), and
(2) for MSE deleted accounts, when user leaves a comment, not a question (data point for leaving an answer missing) (at least on FF and mobile)
If you find other conditions under which this applies to you, please do feel free to just edit those into my question.
The same seems to apply to meta MSE, although there is some contention (based on comments) when.