OFCOL, no I dont think not currently owning a horse negates your knowledge at all. I think you have alot to offer to the discussion and I applaud you for continueing education. The time will come when you will be able to buy a horse again. I have enjoyed your posts and I do think you view things realistically with perephial vision. Not so blinded by the tunnel.
I like the board here and I think there are quite a few that are very intelligent and there has been, although at times heated, some stimulating and thought provoking conversations.
My only problem, is when the horse world is displayed as black and white with absolutes. The world is not black and white and there are very few absolutes in the horse world. When the other shades and colors are dismissed without merrit, is when we get into trouble.