This is pretty regrettable. ISPs now have more power than ever and can directly profit from your online activities. Imagine being turned down for a job because your employer purchased your internet history and saw that you went to some sites of ill repute.
The inevitable dismantling of net neutrality will only compound the issue too - you'll have to pay more for the same service and certain sites may be entirely off limits to you. It's a bit out there, but I can definitely see ISPs preventing their customers from using VPNs.
In short, get used to your internet communications being public (or public-ish). I'd recommend not posting anything online you don't want linked back to you.
