About lemmy.world - when running from reddit, it was literally first on the list of advised ones everywhere. Also, biggest, so it had most communities. I am actually pretty much only aware of .world, .dbzer0 and sh.itjust.works. From the normal ones anyway.
lemmy.ml is basically an instance made by creators of lemmy from what I know.
...dunno where you live, but if I started going with the tongue with my girl I would 100% get absolutely kicked out of any food place. It's not a place for that high public display of affection.
Not saying tho they did that. Just pointing out you're flat out wrong.