These issues are fairly rare, and in this case, it was due to some miners who did not upgrade their bitcoind (when everyone was made very clear that there were

These issues are fairly rare, and in this case, it was due to some miners who did not upgrade their bitcoind (when everyone was made very clear that there were a number of large changes). Bitcoin is a WIP. If you're not a wizard, use a bank such as coinbase or circle who will happily insure you against such rare events.