While as a member of the windower dev team and one of the heads of the 3rd party community, I try to remain neutral to all 3rd party activity as long as it doesnt exploit players out of money and private info.
As a bit of history behind these private server projects. Half of the time SE is only involved in shutting them down is if they become a threat. The other half they get burried 6 feet under due to lack of knowledge and support.
Right now the only use I would personally use a private server for is to use something like mappy, and accurately map out everything in the game soo you can have accuracy in any map project without the risk of your account being taken.