I would suggest that Tonych also distribute to the holders of other crypto-currencies, according to a capitalization total criterion, for example greater than $ 10 billion.
In this case, owners of XRP and ETH.
This would greatly diversify the holders base.
We could use this for great marketing.
Lets say keep x% for the user base of 1 coin, which we select through general voting on twitter or something like that.
The marketing part will be done by the big holders of each coin then

It would be difficult to do the distribution for other coins, I guess.
Marketing, maybe. But is it morally right? None of the alts would even exist if there wasn't for BTC. Show some respect to the software thanks to it you have your stinking ETH vaporware and other scamcoins. Also this would be a debate nightmare which shitcoins to include in that basket and which not. Clearly anyone could just pump out their BTC clone, rename it and expect to receive free BB. And wait what? You mentioned centrally owned and managed private ledgers such as ETH and XRP?! Do you know that the owners of those coins would be the mother of all whales? The distribution is good as it is. Let BB market itself. The whole altcoin game is about getting more BTC anyway. We just pretend that ETH is so good, but behind the curtains everyone just tries to get more BTC out of it.