I'm not sure if this is what you're looking for but if you click on 'Find' and then on 'New Since Your Last Visit', you'll get a list of all the posts made since the last time you logged on to iRV2.
Also, if you'll click on 'Go', then 'Personal Zone'. then on 'Notifications', you'll get our page that permits managing your notification settings.
If I've missed your point, elaborate a little more and maybe I'll eventually get it.
'11 GMC Acadia SLT AWD
'11 GMC Sierra 1500 4x4 Extended Cab