Here are a handful of Ghostery reports for various wordpress.com hosted sites.
42 trackers on the front page of wordpress.com when logged out is a lot. Do they all respect Do Not Track?
Lack of alt editing in drag-and-drop upload flow
Without an image modal, drag-and-drop image upload flow requires diving into the media library to add alt text to an image. #accessibility
Calypso editor Ghostery report
Lots of trackers. We load 12 – 15. Six months ago, there were only 4.
Clipped editor action bar, iOS Calypso
Masterbar buttons, iOS Calypso