A simple answer: You can, but it might be a bad decision.
This month, I renewed my Flickr Pro account for another one year. The main reason is that I already have more than 6,000 photos. If you use Flickr and you’ve upgraded — and also have hundreds or maybe thousands of photos — I think you have two options: renew or leave your license.
I have to agree with what Matt said about this:
My Flickr Pro account is about to expire, I don’t really see any value in renewing it, and I’m also pissed off they only show the latest 200 photos for free members, which means if I don’t pay a $25 ransom more than 800 photos going back to the year 2003 (6 years!) are going to be hidden from the world. That sucks.
But, he is lucky since he has the solution for his problem. But, I don’t think I can do the same. For me, $25/year is still reasonable. Downloading all photos and move them somewhere? Not an easy job.