I have to say I really couldn't care less about what Lewis does off the track...
we have no right to condemn him for his lifestyle.
It seems to be a modern day phenomenon that so many celebrities post anything and everything they do online.
Personally, like you, I could care less; but, it would seem we are in the minority!
Having said that, just by virtue of opening his life up to the public, he is inviting comments, good and bad.
As "they" say in Latin

p.s. Yes, I do know the literal translation of the phrase and in spite of him not buying anything literally,
he is theoretically "buying" attention in offering up his life in pictures and video recordings.