I wasn't bored for about a month or two in summer 2009. Then stopped playing gradually. Then again, compared to some of you, I barely played at all.
For my mods: This color means suggestion. This color means you should fix it. This color means you need to fix it. I love B0UNC3, so I beatmap his songs. Stuff I am a part of.
From my experience yes. First joined the community in 2008, with this account: http://osu.ppy.sh/u/36057 which I have been allowed to keep. Got bored and left for a few years then returned late last year. CPU crashed June this year, lost all beatmaps and other things and lost interest yet again. Might come back soon and of course be overcome by boredom again in a few months. Some sort of pattern appears to be forming here.
Show me a perfect community and I'll show you a pig that can fly.