It sounds like ALR caches are being banned if they require non-GPS cache finding as a requirement.
If I have this right, Challenges which require you to find other caches are still legal. Is that correct? Blackout caches, DeLorme caches, etc are still okay? I am currently working on a Streak challenge which requires me to find at least one cache everyday for a year. I'm telling you all now, this cache is getting me out of bed everyday. I pull myself out of a funk everyday that I get out there and cache. It helps me to forget all the other crap in my life for a few minutes at least. If this type of cache is not allowed, you do more harm to me than you know. Yes, I shouldn't need a challenge cache to keep a streak going, but it is a goal - something to look forward to. Each challenge is a new goal.
Don't like ALRs? Don't do them. Don't like skirtlifters, don't do them. Don't like pine trees? Don't do them. Don't take away something that gives other cachers variety and fun. Who says you should be able to clear out every cache?
Can't hit a hole-in-one in golf? Should that be banned in golf? Can't hit a home run in baseball? Should home runs be banned? Can't dunk a basketball, those shouldn't count. Groundspeak - let us be challenged!