For persnickety folk such as myself, it is irksome to see only lowercase.
The good news is that for most it isn’t a problem at all. eg. we have
- css - not CSS
- git - not Git
- html - not HTML
- javascript - not JavaScript
- jquery - not jQuery
- php - not PHP
- xml - not XML
It hasn’t stopped members from using the tags, and I’ve yet to hear any complaints.