teen,
you say “i was more tlaking about on here (and other places) how people say things but dont back it up with legitimate sources”
Personally I would imagine, & in my case this is often so, that people are generally not blessed with good enough memories to remember exactly when, where & from who they heard every halacha.
Can you give me, off the cuff, the mekor that it’s ossur for two people to eat michigs & fleishigs together at the same table? (without a “heker”)
Neither can I, but give me a few minutes & I’ll find it for you.
I think that’s your answer.