I never noticed a problem finding friends of every nation, sex, age on FaceBook.
That's serious money! Dilbert is thus diminished in our eyes. Maybe he spends too much time with his animal friends. I bet Wally has the FB thing all sewed up!
Dilbert's fake cute girl accounts would end up posting nerdspeek and it would be transparent that it is him. Either that or he would dumb it down too much, or over compliment himself. Any way he fails it would make for a funny sequel to this comic, Alice could call BS on his fake accounts and embarrass Dilbert.
It seems to me that it would be a lot cheaper if he created a few fake FB accounts with Photoshoped pictures and have a script post messages to himself. That could actually be a nice side-job!