What about people celebrating burning women alive back In medieval times?
That's what people doing all the time not just now. Only that the whole world can see a few insane people doing.
I recently wrote some kubernetes charts for running Zulip for my new (smol) org, but I've ran Zulip for the last 3 years as CTO for a mid-sized AAA video game development company...
I really would recommend it over Mattermost (which was in use at another development company I was briefly a part of)
I would recommend trying it anyway. The really poor reviews are from 5-8 years ago when it was legitimately difficult to use. They recently rolled out an overhaul that's significantly improved.
We used Zulip at a company I was at (about a decade ago) and everyone on the engineering team refused to switch from it to Slack, even when it looked like Dropbox might end the product because it was so loved (it's completely independent now so that's not been a concern for a long time).
This is a totally predictable result, there are dozens of HPV strains and the vaccine will immunize against 9 of them that are high risk.
So, unless you are a sex worker or similar, it's unlikely you "have" all of them to the point where the vaccine is completely useless. You might later get infected with a strain that you didn't yet have, and it's precisely the one that kills you.
It could still protect you from one or more strains that you haven’t been exposed to through sexual partners and avoid contracting or passing it along to a future partner. There’s no practical way for a man to be tested for HPV (I asked and the doc said “it’ll be very painful and the result will be the same: get the vax”)
I experienced zero side effects when I got HPV vaxxed at 38yo.