Interesting points indeed. Have you seen the new website? It is quite useful, specially the option to search for flights departing from an airport depending on dates and maximum price! The website still has some bugs but I always thought the old one was lacking this option.

Also, I've seen something new on the price windows. On some flights (not a lot) a higher price appears crossed above a new, cheaper one. I've seen this on a flight that was first 33€, then 27, and now 33 again. Could this be the option that we are discussing: Ryanair trying to fill up the plane?