[zokier]

> What if non-root could see their own processes in detail, but only the program name for other users' processes?

At which point you might as well ask why do you need to see other users processes at all? And indeed, that is an option in grsec. I don't think it causes any major breakage, but there are probably some xkcd #1172 sort of things that break.

edit: apparently there is nowdays also options in mainline for that too: https://pipo.blog/articles/20130930-hidepid-process-hiding and also possibly with selinux?