I think everyone probably knows where I stand on this one. The OT threads are usually the best, and certainly the most entertaining, threads on here.
I do understand how one could perceive them to be annoying though. It is pretty annoying when certain posters start an OT thread to tell us what they had for breakfast, start a new OT thread to let us know they studied for a couple hours at lunch, and then post a new OT thread in the evening to let us know they are feeling a little bit sad. Perhaps a cap on the number of OT threads you are allowed to start would be good.
I think if you are bothered by the OT threads in general, you can navigate the site using the sub-topics listed below in the main forum. If you are studying BEC, just stay within the BEC threads, etc.
Overall, I think the OT threads are a huge part of this site's success.