A fund should be created to invest in other blockchains that provide a regular return

This is why I am a huge proponent of using DHF funds to seed VSC liquidity pools. It directly brings in returns for the DHF/Hive ecosystem while also increasing the utility of Hive as a whole. It's a win-win solution with little to no downsides (besides investment risk of course in an asset of choice i.e BTC, ETH, etc)