You must have a good can opener, because you just opened a great big can of worms!
This is something that, when you get right down to it, is really as much about opinion and personal preference as anything else.
My own opinion happens to be don't worry about seasoning them. But there are many others who differ on this I know, and they have good reason. I'll let them explain their positions.
But my biggest point is that in the past, builders did not season their timbers, or at least did not do so often.
