killall -9 processname works well when you can't be asked to get the pid.
kill -9 $$ is my favourite way to save face when I enter something into shell that shouldn't be in its history. Usual situation - switching panes and forgetting a recently used sudo session. Switching to root and getting there without a password prompt, but still typing it in. Wouldn't be helpful in situations where shell history is monitored remotely, but hey ho.
dire problems, including those that accumulate over time
That's not a thing. You create problems over time by experimening in what is, effectively, production load. If all you ever did was install any distro and kept it up to date - not much can break. Granted - shit happens, but it's incredibly rare.
As an example - I've set up my mail server in May 2019. Chose archlinux, because I never wanted to go through a big upgrade. The only exta software installed there is mail-server related. Direct from the repos. I've become confident enough that now there's a nightly cronjob to update the system with a hook to reboot if kernel or init gets updated.
In all those 5 a bit years I've had one issue where I hqd to revert a kernel update.
Another example is tang on an ubuntu server. This was at a previous workplace, but essentially it's a piece of software from the repos. Originally installed on 16.04, has gone without reprovisioning all the way to 22.04. I've now left the company, but I hear it's still running.
Upgrading an ubuntu desktop fleet with a myriad of custom software, on the other hand... let's just not talk about it.
Democracy does seem to cater people just below average. Good monarchs can easily beat that, but then the new problem presents itself very quickly - good monarchs are far and few between.
And the w11 is a work laptop that is getting Gentoo whenever I get a minute, leaving w11 on as small a partition as I can get away with for a once a month check in to intune.
As comment in another post said - this is for modules only. There's still a ton of binary fluff that is the main cause of issues and that is not getting open sourced.
killall -9 processname
works well when you can't be asked to get the pid.kill -9 $$
is my favourite way to save face when I enter something into shell that shouldn't be in its history. Usual situation - switching panes and forgetting a recently used sudo session. Switching to root and getting there without a password prompt, but still typing it in. Wouldn't be helpful in situations where shell history is monitored remotely, but hey ho.