Just got the email. A pretty big deal for those of you who have more than 5GB stored in OneDrive. Seems pretty sucky. 
 

Are they changing their name to OneThirdDrive too? 

Everything is forever on the internet, except a promise. There have been a gazillion similar episodes of free storage turning into paid storage, freeware morphing through adware into paid software, internet radio turning into subscription service etc. Once they have your data, or entice you to the upgrade or whatever their business motive is for making you think you will get it free forever, then you become a cost center, instead of a potential profit center. Internet commerce, like life, is an introductory offer that will not last forever.

I guess when it comes down to it, they're a business, and if they weren't making money out of it you wouldn't have any storage at all.

Hi. I ended up deleting almost 16 Gb on OD yesterday after I got the mail (I had for some reason 30 Gb storage there). I have decided to only use it for transfers between pc's, and screenshots. It's a pity, but as mentioned they are a business and needs to survive. I will find a way

I would never rely on just juan drive.

I've never used my OD account.  I use dropbox for access to pdf files from my tablet.  For collabs I use box.  I think it has 10G.
 
I wouldn't mind paying for online if:
a) I really needed it instead of it being a minor convenience AND
b) The paid online storage services were priced such that I thought it was a good value
 
 

bapu
I would never rely on just juan drive.

But sooner or later it is just the juan ewe (getting better at spelling) can count on being reliable at (at best)
But which??

I went the $59 / year route for unlimited storage with Amazon.  They make LOTS of money other ways so I'm hoping they don't need to start limiting it.

I use Crash Plan for cloud backups of music projects etc, on the advice of Noel Borthwick of Cake. It works perfectly and is quite reasonable price-wise too. 
 
In terms of free cloud space, I just use that for small documents and the like, so I'm never likely to go over the limit. For instance I have various business related docs backed up on OneDrive and I doubt whether I'll ever hit 1GB, frankly. And I use Google Drive for PDF manuals, and also transferring photos from my phone to my desktop without having to use pesky USB cables.