How do I turn off all the stupid achievements?

Solution
I'm a grown up, I don't want all the stupid patronising gamification of an achievement trophy every time I do something.
Make it stop. How do I turn all that crap off?
I don't care.

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FIRST

Click on your username at the top right--click the little gear looking thing---go to preferences----select custom alert preferences. There will be a huge list to go through.


THEN
search preferences for this Alerting Preferences blob:
1720534866446.png


You could check "no alerts"

Or Check "use custom" to unleash the huge list of unfortunately default-on settings.
Scroll down to this:


1720535009969.png

and disable the achievement alerts

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I really don't mind the new forum an understand the why
but I do get the...
Weird. I don't seem to get any of them and have only seen my levels when I touch my avatar at the top right of the page.
I haven't ever received any notifications re: Achievements and don't know what I did to prevent it. The only things I have done since the upgrade was to turn off push notifications and fiddle around with the default viewing options. Heck, I didn't even know they were there until @BAG said that he saw them when he hoovered over his avatar. So aside from not knowing about them, I don't know how one gets them and I surely don't know how to turn them off. And what the heck is XP?