¯\_(ツ)_/¯ i bought my current phone because of its headphone jack
this is mostly about bluetooth, but some of it applies to usb-c + dongle:
i have a cheap pair of earphones in my pocket (which i'm prepared to lose). another by the door. a more expensive set of headphones upstairs. a speaker in the kitchen. and when i get in a friend's car or go to their house, i can just plug my phone in and it works without the aggravation of having to pair to their speaker
tell me, oh "you can just buy a dongle" people, what am i supposed to do? buy one and accept that i'll lose it all the time? buy 5 and keep one plugged into every 3.5mm i own and don't own?
plus, y'know - takes slightly more battery, hassle to pair, can't charge and use dongle, all the other obvious issues
-- source, full comments
your particular instance (jlai.lu) has defederated from lemmynsfw (though oddly not pornlemmy.com); so you won't see any communities, posts, or comments from their users
you can check the federated and defederated instances before you sign up by clicking the "instances" link at the bottom of the page, then scrolling all the way down to the "blocked" section
as to why you can't sign into your lemmynsfw acct.: i don't know. possibly because they're running a patched backend? it may be worth a bug report