(Kind of) a social experiment: presenting a public decentralized canvas completely stored on the Ethereum Virtual Machine

Hi, do you folks remember the website from some years ago that was famous for selling its pixel spaces for advertisements? I was thinking about that recently and wondered how it would have looked like if it were created today, in the era of the Blockchain and NFTs.

I initially tried issuing an NFT for each pixel (or group of pixels) and smart contracts that would manage the repainting (so that anyone could resell the property of pixels and new owners repaint them), but it got complicated too quickly so didn't manage to finish it.. idk maybe I'll try again in the future.

After this unsuccess, I was trying to think about a simpler way to obtain a similar result and I realized that the payload of ETH transactions alone could be used to send and store arbitrary data to the blockchain, and it would be trivial to implement, without smart contracts or anything else, so I absolutely wanted to try it that way: anyone could send a dummy transaction with the pixel colors encoded and change the public image. But how to behave in case of multiple transactions on the same block? It seemed fair to make it so that the highest tip would decide (starting from a minimum tip of 0.001 ETH).

In other words, I ended up creating a website with a 100x100 pixels image saved in the Ethereum blockchain, where each 10x10 pixels block content is decided with an endless auction, in a similar fashion to NFTs, as I intended to do initially.

Soo.. it is now online and functioning and the URL is https://www.ethpainting.com/

What do you guys think about this website? Do you think is a cool little project or just a stupid useless thing I shouldn't have wasted time on? What could have I done better?