I agree, this seems to be the trend. I see this as the result of one of two things. A) Ned and Dan decided they want to give a strong boost to their platform and have invited some celebrities to get things riled up or B) these celebrities see an opportunity to cash in and out quick.
Either way, I agree with soaringeagle, it is what is popular now and I hope that it evens out soon. I admit I follow a couple of the bigger celebs because I enjoy seeing what type of propaganda they are peddling and I may even upvote it in the hope I can ride some coattails. But, I save my 20 votes a day usually for good strong posts from people I know are awesome content writers and then a few posts from folks I don't know, but their content looks promising.
I figure spread the wealth and try to build this platform, despite the current waves being thrown by the big whales dropping in.