Oomis, boys and girls being friends with each other is an issur d’oraysa. This has been pointed out many times on this board. No posek disagrees with Rav Moshe and every other posek who addressed this issue.
Nevertheless, certain posters continue to persist in making it like its okay for boys and girls being friends, even though its been said here multiple times, with precise halachic citations, that is an issur gamur d’oraysa. Not one posek disagrees with this. Not one. Try to find ANY one on the record and let us know his name. You wont find any, period. It is a d’oraysa.
If one of those posters again play it down or make it out like its okay, we all have an obligation to scream on the top of our lungs ASSUR GAMUR D’ORAYSA! Lest any innocent reader C”V fall victim to any of those posters ramblings.
That is just an example.