I have a page with 5k likes most of which i got around a year back. Not sure what happened in last few months but my posts don't propogate that well as i can see from the views of the posts. Is it something facebook has done or it could be because of the way i am posting on my pages.
Yes there have been changes in facebook pages in last 1 year. Facebook has recently started a paid service for propagating your page posts and hence restricted the natural propogation of posts in subscribers feed. Same has been done for recommending pages. Though you can use other service like Fiverr and others which charge nominal money for getting more page likes but Facebook page is no longer an effective way for sending messages across through page posts. I would recommend paid Boost post if you want a specific message to sent to large number of people than buying Page likes.