[maaku]

> ...and meaning longer transaction confirmation times (for at most 2 weeks, while the network adjusts to the change in capacity)

To be clear, it wouldn't be two weeks. The network adjusts every 2016 blocks, which under normal circumstances would be approx. 2 weeks. Typically it's a little less as new hash power comes online, but in the case of a drastic loss of hash power, it could be much much longer than two weeks. We saw that with namecoin where it took almost half a year between adjustments (or would have, if developers hadn't intervened with merge mining).