Opinionated may have ment the 'fight for your view till death' kind of folks perhaps. In which case it is being far from fun.
I've definitely run in to those types at meetups. They're there to ruin the event for everyone (although I'm sure they themselves have a good time).
Thankfully it's possible to convince a smaller group to ignore them (don't feed the trolls etc) so you can have interesting conversations.
The solution to "software authors routinely collecting more info than they should" is not "accept the behavior as irredeemable, and just normalize it".
The answer is "make ot way more visible to users when it is done, snd make it harder for software authors to do/maintain." Anything else is just a tacit acknowledgement and grant of legitimacy to the behavior in question.
* use as in use for the intended business purposes, not harder to write the code