Originally Posted by Storm

Thank you for your reply. I'll look into IRC script. My current seedbox got 1Gbps connection.

Does being among the first seeders gives you residual advantage? In other words if you grab file first will your box have some sort of priority to be "offered" as a seeder before latecomers?
For how long do you keep grabbed files before cleaning the space up?

1GBits seedbox /=/ 1GBits seedbox. A 1GBits seedbox shared between 4 is obviousy 100times better than one between 12 users(or 8 or 6)

No, but you can start seeding earlier when everybody is downloading.
Better connection = 'more offering'

I can't really answer the last question as it totaly depends on your needs, your connection and most importantly your HDD space. Someone with 300GB has to wipe his HDD everyday, but someone with 1.5TB can also keep some older torrents for bonuspoints.
Keep torrents only if they give you a lot of bonuspoints or if they are hot (obviously don't HitnRun)