Dapps anyone.?

Has anyone attempted to build a decentralized application or dapp using this awesome platform?.
I know levels of “decentralization” in apps exist and have read that the purpose of this tool is data apps and that streamlit wont work for blockchain, Nevertheless I progress let’s say something like a super simple communication platform BACKED, VERIFIED, PERMISSIONED by say a private Ethereum node. Is the ultimate issue a scaling one?

^^^^ I really want to know the answer to this!!!

At the risk of being glib, the answer to this is probably that someone needs to actually try and highlight the problems that they run into. The great majority of people have no idea what blockchain is, let alone what is necessary to do to build it into a Streamlit app.