I think, rather than Daily Lolita itself dying, our social media is constructed in a way where we aren't reworded or interacted with if we post our more casual coordinates. Moreso than being participants in a whacky street fashion, we are seen as "content creators," and a large part of what we put out there is expected to be reposted to other websites or to draw a crowd and discussion.
Gone are the days where the community was small enough where people could expect comments on even the shortest of posts.
I still coordinate my lolita really casually, nothing makes me happier, but I am guilty of the all-out RuffleCon shenanigans and photoshoots because being older, I just don't have the time to wear the fashion on a weekly basis anymore. Going to cons or large meet-ups are my only outlet, and then I want to dress more OTT to fit the part as a result.
It's almost like I'm saying: "I can never find time to wear this outfit anymore, so when I do I'll add about five more accessories!"
One of the reasons why moving to Portland was such a change of pace for me is that I felt like I went back 10 years. I run into a "wild lolita" almost every weekend I'm in the city. They always prioritise comfort and a day with friends over anything else and it's a type of lolita fashion I find myself longing for more and more. I want to know what shoes I could wear that would allow me to run around for 6 hours in the day, not which giant bonnet is the best quality.
TL;DR: I don't think Daily Lolita is dead, I just don't think most people who regularly post their outfits think there's a demand to see them. What do you think?