[ptokb3]

I think he means that blocks are full and even transactions with correct fees will fail to confirm during high-volume transaction times.

It's a flaw because users did nothing wrong yet their transaction could take hours if not days to confirm if it confirms at all.

The most simple and straightforward fix is to increase the maximum blocksize from 1MB to something larger, which many users in the space have demanded. The max-blocksize was always meant to deter spam and attacks.

New users should use Bitcoin Classic, which fixes the problem and subverts Blockstream's obstruction.