[isuckatcoding]

The only (silly) reason I can think of is that a non trivial number of people copy pasta directly from chatgpt responses and having the timestamp there would be annoying.

[Kailhus]

Yeah, that's a valid point though some text on a page can easily be made unselectable via css (html?). I think through user-select

[joquarky]

Or just toggle off the timestamps before clipping.