have 'number of posts' (for various posters) gone away? (in regular thread postings)

[usonian]

10. Inside info: Your browser sends screensize and other info to websites.

That could be getting confused, or sometimes you'll see a URL with a m.site.com, where the m means "The user has a mobile device"

I did a search on "html response" regarding window size, and it's so embedded that a website merely writes javascript code:

var w = window.innerWidth;
var h = window.innerHeight;

Gone are the good old days when the browser response string was a big deal.
As usual, resetting the browser, however that's done often helps. (all I see here is "clear history and data" )
It also erases your history of browsing naughty sites (unless Google is tracking you somehow) I use browser extensions and built-ins to limit or stop tracking cookies. Too complex to discuss here.

HTH!