I didn't say bored now :U
For instance, my last role play I left wasn't because I didn't want to continue, it was because school threw a lot on me all at once and the GMs pace was wayyyyyy too fast, and the people I was interacting with took forever to post.
I'm not saying I WILL leave and Im definitely not saying I WILL get bored, what I'm saying is my life is eventful and that may hinder me from posting quickly, and if it becomes too much I may have to leave, not that I want to.
That being said, everyone has the possibility to have an event in their life that prohibits them from roleplaying effevlctively. I'm just saying that I have a higher chance of one of those events. If you were to write me off based on chance I'd believe that to be a little rushed of a decision. Besides, I'd refuse to drop out unless I was able to make a dramatic exit that helped further along the story.
What I'm trying to say, is that if it were to show that I might have to leave, I want to contribute a meaningful character death to further along the story, and I highly doubt you'll find many people expressing their willingness to allow such to happen to their character so free willedly.
I have about 2 months of unencumbered role play potential at the moment, that means it'll be at least two months before I might have to leave. That's ample time to make a significant impact on the story :P