Tbh warning of “eye contact” be it humans depicted or otherwise is a bit much, as is “food” and probably some others I’ve seen I can’t recall. I can’t recall all the masto instances I’ve seen it from, it was standard practice before the Twitter people showed up. Some on the one I’m on even do it, though very few and rarely. Looks like it is less common now, but if you look around a bit you should still see it.