in my own head the definition of a thread is a link to a subject that's being discussed, someone else might call it a post or i'm sure there are other terms that people use. like when i came across your thread under the active topics i clicked that link that brought me here, that's what i understand and call a thread.
and your welcome for the link to the other "threads/posts" about this subject. I'm new to motorcycles so a lot of this is new to me also so i have done a lot of reading around here and hopefully when i get home i'll remember this stuff so when i work on my own bike that i wont have such a hard time and i'm sure that while i'm customizing my bike that i'll have to refer to this site or a search on the internet to help me along as i'm going to be very cautious when doing things.