This is an interesting question.
For me, one reason is because my browsers frequently drop the cookies containing the password and the subforum then disappears. Out of sight, out of mind. I find that whole months have gone by before I even realize and even then, it’s only because someone I know mentions poetry.
Another reason is that, while I want to write some more poetry, my time is limited. Sadly, I cannot run and write poetry at the same time.
Poetry requires a certain mindset. For me, at least. It requires a certain solitude and self-introspection. It requires reflection and time to assess and distill the things you glean – about yourself and about your surroundings. And most importantly, about your feelings.
Poetry requires an acknowledgement of some truths, personal and universal. It requires letting down walls and allowing whatever is held back within to come pouring out. For me, it almost requires a quiet, meditative state where I can contemplate things and decipher the meanings hidden within me.
I also have a WIP, numerous short stories, articles and blog posts jockeying for my writing time and the unfortunate truth is that poetry is at the bottom rung of that ladder. For me it’s a luxury. A dalliance and a mental exercise.
I guess when my internal pressure hits a sufficient boiling point, it’ll naturally climb upwards in importance, but until then, I’m content to be reminded of it once in a while and go enjoy.