My guess is he's bookmarking some lands for easy access to them. That or he's a spammer. An all land is possible though, I've come across a few, some even competetive enough to stand a chance in tournaments. You just need to know what you're doing.
Permalink
Adding a bump as I pass through, mainly for the hell of it ;).
lol Jlisec, you commented a year after the author asked for comments