Bugs should be fixed indeed but using anything but UTC on a server is swimming against the tide. Bugs get fixed in old software over the time but new software w

Bugs should be fixed indeed but using anything but UTC on a server is swimming against the tide. Bugs get fixed in old software over the time but new software written every day without consideration that time can jump around. And even old software from time to time is being rewritten in new languages with old knowledge / workarounds thrown away with bathwater (old code). So I don't believe we will run out of bugs related to DST switch anytime soon.