Flickr is not an evil place. I like Flickr, I think it's fun, and there are a tremendous amount of inspirational images there. I just don't think it's a "professional tool", and photographers who are trying to take that next step should consider a system that is more business-savvy.
I have cut my Flickr participation to non Pro. I started wondering what benefit to anyone was my having 2100 pictures on an online site with no one looking at them.
Only the latest few images get seen.
So I took them down. I only put up fun stuff - and some portfolio stuff too... but not in a serious attempt to market and no more 'lighting' instructions.