yes I never considered BitShares/Steem/Graphene with that witness system as very decentralized (I mean e.g. who even decides things like "The number of witnesses has also been reduced to 23 from 27"), but as opposed to Bitcoin Maximalists I do recognize there is a niche and demand for such approaches in order to prototype applications until better scalable (while still actually decentralized-distributed-p2p) blockchains are available.