Hi there, well you can go on gacebook and check hina khan collections and Cookiee mak’s collection fan pages. They have their logos on like more than 300 pictures. And all dresses are of famous designers. 
So if i’ve added my name on few, i think it shouldn’t matter. The only reason to add my name on the pic is that ppl start copying the pictures and upload on new small groups wiith less prices. And most of the new ppl on FB are now making these fake groups to earn easy money. Now i hope you understood my point. Otherwise i always mention this to my clients, that its not my design. I’ll make 100% same for you.
Cheers,
Sobia Saleem.