This is how this letter reads to me: Woohoo, we got acquired. Thanks a lot for bringing our valuation up buy trusting us. We started $service to solve a problem that matters to you. Because of that we're joining $totally_unrelated_product. Thanks for all the fish.
Let me add: " Because of that we're joining $totally_unrelated_product. And damaging the ecosystem that allowed us to get to this point." It bears repeating that every time one of the acquire shutdowns occurs it makes users that much less willing to take a chance on a small startup. Even a shutdown like this that isn't screwing over existing users reminds everyone of the pattern. Hmmm, maybe I should start ending thi…
We started $service pretending to care about solving problem that matters to you so that we could extract from you as much money as possible quickly.
I don't believe what startups say anymore. They don't want to solve anything. They want to make something that looks like a solution for long enough that they get piles of money.
Maybe it's understandable, but I'd like they'd be more up-front about this.