There are a lot of them out there and people taking their words like some sort of divine message. Following their steps, even wearing the same hats with them. The famous photographers of internet giving advice about the "best equipment" -- commonly the new stuff which needs promotion. I'm not saying its bad... It's just business and if its putting food to the table be my guest.
The problem starts when people follow every step of famous internet photographers especially when it comes choosing equipment.
One of those photographers switched to mirror-less Sony from a big Nikon D3 equipment and it was one of the greatest fuss ever took place on the net. Same photographer also claimed that dSLRs are a "dying breed" on an online radio program and created another huge fuss about it.
Many modest photographers who are curious about mirror-less systems surrounded with infomercials after that and many of them left their trusty dSLR systems for mirror-less cameras.
I'm going to keep it short and will just say; The famous photographer who switched from Nikon dSLR to mirror-less Sony because of the weight & size of the dSLR now using medium format digital HASSELBLAD. Complain about the size & weight of Nikon equipment and switch to Sony mirror-less claiming that it does the same exact job -- and when you done with your agenda start using a medium format camera... That is interesting.
This is why everyone should be careful about the famous photographers of the internet. Since %99 of them sponsored - they might be misguide others with their advice, actions and suggestions.