Oh, where did all those coins go?
Well, it looks like they were fairly distributed...
I might write about BBR, but it wasn't nearly as fun a story (or profitable) as XMR. I obviously had an optimized miner for it, but decided to take a different strategy with BBR of mining a lot, holding it, and then contributing code back to the coin to try to improve its value, so I spent a lot of time taking those optimizations and putting them into the open source simpleminer. In contrast, with XMR, I just mined and sold instantly.
It wasn't as profitable as keeping the xmr miner completely private, but it's hard to compare given the market cap difference.
What I've found is that overall, "totally private miner" (XMR) >> "optimize, mine, release" (BBR) > "convince the developers to pay to open source" (PTS) > "open source miner with optional dev fee" (RIC) > "give code away and ask for donations" (scrypt).
Not economically surprising, but some good lessons in there for future coin developers who want good miners -- get someone to do it ahead of time.