Do you know how many Ipfs nodes have actually pinned your content? Have they done so purely because they are ipfs enthusiasts? Do you feel this solution is better than hosting it on a raspberry pi from home or on a cheap VPS?
I have no idea of who or what pinned the ipfs content. I really don't gather those statistics and have never tried to do so. The only "metric" which grabs my attention is that the content is widely distributed and that its reliably accessible via more than one way (not depend on a single point of failure) over large-scale electronic networks/protocols (HTTPS, DNS, IPFS, ETH, ENS..).