Well I don't have to make polls & studies and know this. It's really obvious. Just look at her sales and compare them for example with Barbra Streisand's latest sales. If Madonna continued to do music she did during 90's she would have much bigger acclaim, legacy and recpect. Like, what is gonna people think after seeing ****in' Bitch I'm Madonna video?
But I think it's not all so negative, she still has her pre-30 years old gays I think, and she tours the world.