It's not intentional. I log in every few days or so, click on the threads that interest me, post there, and then often forget that I've posted. Alternatively, I do remember which threads I've posted on but by the time I get back here there's, like, 140 responses to the OP and I can't be bothered sifting through the thread to find any questions which may be directed at me.
Bit of a narcissistic question to ask, though, ain't it? I mean, why do you give a shit whether I (or anyone else) answers your questions? Do you go back through your posts to find out? Cos that seems like a lot of work there, sweet thing. Most questions on this forum seem to be geared toward making a point rather than requesting information of a given poster.