There is a way to renew my free drive storage after it expires?
If don't, i can say that its not nice what google is doing and i will explain why: Let's imagine someone like me that uses drive a lot, in college, job, personal life etc. But always managing my 15 gb, and one day i get this 100gb free storage for 1 year and start using 20gb of it, 25gb and finally 50gb of the 100gb available. After 1 year, when my free drive storage expire i will not be able to upload any file anymore before removing 35gb of my data. If i don't do that i can't use my google drive anymore, and i can tell you that it's not easy to get away with 35gb of data. I can't imagine a way to delete my 15gb there, imagine the nightmare to remove 35gb or more!
Then i will have no option but pay google drive forever to keep using google drive or migrate to other service like dropbox (i dont like dropbox and love google drive! i use my google drive for years). So, we can say that this offer is almost a trap. I know google just want to offer a gift to those who help sending data (photos, comments etc), its a good thing, but the gift must be complete, not half of it!
Solution: A way to renew the offer, like making 200 points (or more, doesn't matter) again every year! This way the users will keep sending data (good for google) and keep the offer (good for users). Win win solution