Need HELP with Blogger vs Google plus

Good Morning Everyone;
Since I could not sleep after about 9:30 PM last night, I am very tired this morning.
Perhaps that is why I am not understanding this, from here

The topic is "Frequently asked questions about switching to a Google+ profile"

And the question is "If I switch to a Google+ profile and change my mind, can I switch back?"

Their answer:
You have the option of reverting to your Blogger profile for up to 30 days after you make the switch. After 30 days, your Blogger profile will be deleted and if you want to switch back, you will need to create a new Blogger profile.

Does this mean they will delete all of my stuff? 

I would rather ask, than take a chance- (I see most of my friends etc are linked via my Google + profile).

Say it isn't so?

XOXO
Me