Google+ Photos limits?

Hello

So I recently discovered Google’s Social Network platform called Google+(plus), which apparently offers unlimited number of photo space as long as the said photos are under 2.048×2.048 Pixel (If the photos are larger than that, it either resize them or count them on a 15 GB free quota), and as long they don’t contain any material that isn’t allowed by Google’s terms (nudity/porn/violence/etc).

Fine then.

My question is, since Google+ its so nice to give me this virtual “unlimited” space, will it have any problems if I upload my pictures library, which weights around 3 TB, and keep it for a private use ? (just to access my photos from any computer).

I just want to clarify one thing, I don’t intend to use it as a backup service since I’ll always have my copy in my external drives.

I have read:
http://www.google.com/intl/it-IT/+/policy/content.htm
And
http://www.google.com/policies/terms/
And
http://www.google.com/intl/it-IT/+/policy/pagesterm.html
(Some pages are in Italian but I guess you can easily find the English versions)

And apparently it says in the “Suspension and Termination” paragraph that “Google may, without notice, remove your Google+ Pages if they are dormant for more than nine months”, and I was wondering does it apply to images as well?

Also, I would like to “take advantage” to Picasa (Google’s picture manager), auto-sync feature to dynamically upload screenshots images of my computer’s screen taken regularly every 60 seconds by another program, this to create a sort of “Picture diary”, of my computer activities (which includes chats, gaming, Internet browsing, but also working, online payments and other stuff), which will be also kept private.
Does such amount of images uploaded may count as spam? with this system I may upload 1000+ images each day which weights around 250 KB each.

Any reference to actual Google’s ToS or other users’s experience will be much appreciated.