It really doesn't matter if you support other chains, have an external website, etc. You can't continue to claim "decentralization" as a central part of your business ethos and a key value proposition of your service, if you continue to support Steem. It is like saying you are not a Nazi while continuing to go to Nazi rallies and signing people up for the Nazi party - it really doesn't matter if you do humanitarian work as well. You are still a Nazi LOL
STEEM IS NOT DECENTRALIZED. The backend is not decentralized - half the consensus witnesses are literally puppets run on a single server (single point of failure) and the other half are bought and paid for by JSun and will run any fork he says - there is a single point of control over the backend of Steem. When the recent softfork was pushed through to freeze user funds, witnesses that did not agree were dropped from consensus by JSun and the steemit Inc stake. @blockbrothers went from the #1 witness spot to a spot in the fifties with the removal of a single vote. Many of the consensus witnesses on Steem have not ever made a single post or comment on Steem. Let that sink in.
The front ends are not decentralized. The Steemit API nodes / hivemind nodes are controlled by one person and are being used for censorship.
If you continue to support Steem, at least have the good grace to remove all mentions of decentralization from your website copy and come clean to your users that you have sold them out for promise of support by a literal tyrant. Thanks.