Gabriel, that's a fair question, and I'll answer it honestly.
Madonna fascinates me as a person because 1) he reminds me of how I used to be at that age, only I was a lot more restrained, and 2) he has a quirky, eccentric, artistic mind. Artistic minds seem to be routed differently from the rest of us, and examining some of their thought processes—manifested as posts in this case—fascinates me endlessly. The left-brained, banker or Wall Street mind is not for me; I much prefer the artistic types. It's purely a personal preference.
Similarly, Belamy's posts intrigue me (although unfortunately I have unintentionally alienated him), and Jasun has a rather interesting bend of mind. To give still another example, Ilikefastcars is beginning to fascinate me, despite his all-too-uncommon posts. We cannot forget fabulouslyghetto, who is still another example of a man with an artistic mind.
One thing absolutely everybody here has to admit if he's being honest: Madonna sure as Hell ain't boring!