Thing that bugs me the most about IM is the fact that everything new I see around me walking or driving I think how to profit from online. I shit you not, I was once in the Alps going to a ski resort with some friends, we stopped at a panorama view with the greatest scenery I've seen in a long time. All my friends were in awe and I, well I just mumbled "wish I had my DSLR with me, could take some really profitable pics for a tourism blog"... Kinda sad sometimes... not being able to enjoy some simple pleasures because your brain is in overdrive all the time for the next new method or opportunity.
The thing that bugs me about domaining is the fact that everytime I hear about a new tech/new trend/new niche I check if the category killer domain is taken, if it's not taken, well, it's taken now! If you know what I mean
I guess these are professional sicknesses to IM. All jobs have them. Glad I'm not a miner or an asbestos remover.