[jlmorton]

I was also amused by a UX complaint on a site that is totally borked in a non-obvious way on Firefox.

It's not totally broken, it shows the first frame of the image, there's just no indication at all that the image is actually meant to be a video, there is no play control, and it just looks like a static image.

[lproven]

> it shows the first frame of the image

Not for me. Big blank black space.

Could it be there is a correlation between poor use of human language and poor use of markup language? Between poor UI and poor cross-browser testing?

I lived with 2 different programmers for 2 extended periods of my life. Both were professional software developers. Both were startlingly poor at understanding how PCs worked, chose poorly and bought poor hardware, and then were unable to fix their own problems or install their own upgrades. Both were intolerant of alternative OSes or app choices because they were wedded to specific apps on specific OSes.

Now I can't safely generalise from that to all programmers, obviously, but it's a strong hint.