[Dense_Body]

You are correct but it actually could not be run on BTC or BCH because of changes that were made to them that make them incompatible with the design laid out in the protocol whitepaper. It also would be prohibitively expensive to do so due to the block size limitations they have in place.

[shilch]

In theory it could work on BTC or BCH. Bottle relies on large OP_RETURN which is a miner-adjustable limit, not consensus. But in practice you (1) would need to find a miner to do this. (2) could only put in 1MB of data on BTC. (3) would have to pay a lot of satoshis (as you pointed out).

[ltworld]

Yes and also, BTC and BCH don't have a "Stable Protocol" Mindset, OnChain Developer Apps will get Their Apps and Tools fked up every time the Core Protocol Changes.

Aside from the lack of infrastructure, in BTC they already abandon the miner, The money that should be Goes to Miner for securing the chain, it goes to the Lightning Network Node.

When block reward diminished it'll fked up, they cannot survive with such low income from LN.