I think for most cryptocurrencies, collaboration is just a way to get more investors to the project and as a downside also would have to share investors with the collaborating currency, so only one of the collaborating projects would get benefit out of the co working.
But for Hive I believe it's more about getting daily active users on our platform rather than bringing in new money constantly. Yes the Hive price is dependent on new money and if people come with 0 investment and start withdrawing only, it will again hurt Hive price, but that's not why we are necessarily here. With the 5+ years I've been on Steem/Hive I've come to not care about the profits I earn from this platform, but rather the connections I make and the good time I spend. The money is secondary in a bear market, but it's the first thing in a bull market (for me personally).
If you set it up via a financial instrument like the one i propose in the comments here that wouldnt have to be the case.