IPtorrents: No need to notify
Tvtorrents.com: No need to notify
HDahoy.org: No need to notify
Torrent-damage.com: No need to notify
BTN: No need to notify
C*: No need to notify
KG: No need to notify
SCC: No need to notify
PtN: No need to notify
What: No need to notify
TiK: No need to notify
Waffles: No need to notify
HDME: No need to notify
TDC No need to notify
PTP: No need to notify
BIT-HDTV: No need to notify
CGD: No need to notify
BitHQ: No need to notify
TvTorrentz.org: No need to notify, but you can seed/leech a torrent from only one of the IPs, but not both (home, seedbox , etc)
BCG: No need to notify
Libble.me: No need to notify
Preto.me: No need to notify
Nordic-T: No need to notify
LeechersLair: No need to notify
RevolutionTT: No need to notify (unless you have MORE then 5 Ip's)
TheDVDclub: No need to notify (unless you have MORE then 5 Ip's)
AHD: No need to notify (unless you have MORE then 1 seedbox, then leave note in profile)
Demonoid: No need to notify, but the stats will not be updated properly unless you do a whole bunch of things (google is your friend?) Anyways, who care about the demonoid ratio anyways?
BitMe: Recommended to notify staff
TL: You need to tell the staff on IRC!
Supertorrents: You need to tell the staff!
Thebox: You need to tell the staff!
ItN: Write that you got a seedbox in your profile!
BG: Unknown, more info coming.

Source: torrent-invites