Someone who complains about something and actually backs it up…this is new 
I don’t know enough about the blockchain to really comment if this is actually a bad thing or not. I cannot myself verify the statement that these are problems. But I commend you for bringing this up with links for everyone to check it out 
One thing that comes to mind about the farmer and pool address being the same, is it maybe that they have their own plots also running inside the pool? Just a thought.