a photo of crypto expert reviewer Mathias Groennebaek

Mathias Groennebaek

Mathias Groennebaek founded Braveno, a cryptocurrency exchange for investors, companies, and developers. Previously, he worked as a developer and operations manager for Ethereum.

Ethereum Foundation

Reviews by Mathias Groennebaek

πŸ”‘ 0 positive | πŸ’© 9 negative


It is all a trap for retail investors to get robbed.

Stellar is there because Stellar and Ripple are equally Ponzi schemes. Stellar is a Ripple fork started by Jed McCaleb, the guy who started Mt. Gox. Jed is the king of getting hacked and disappearing with the money.

2018-01-06 | Full Review


IOTA is garbage.

2018-03-31 | Full Review


Tether is still shady as fuck though, but as a principle it could be applied to other tokens and is an interesting development.

2018-04-04 | Full Review


Honestly, I don't understand the whole EOS thing. Why people decided out of all the companies in the world that could run a federated permissioned ledger that it should be one run by people with a track record of borderline fraud I will never understand.

2018-07-20 | Full Review


I think Augurs approach leaves something to be desired. Disincentivizing it by demonetizing it is not strong enough IMO.

2018-07-24 | Full Review


Bancor is all the risk of a centralized exchange, with none of the benefits like instant multilateral execution, and settlement guarantees. The worst of both worlds.

2018-07-10 | Full Review


I like to hate on Ripple as much as the next guy, but in the interest of accuracy, Ripple the company can't directly freeze Ripples; they can censor transactions on the validating nodes they control, and gateways can freeze Ripples. That's what happened to Jed [McCaleb] on Bitstamp.

2018-12-14 | Full Review


The whole premise the OmiseGo decentralized exchange is built on is flawed. You can't have an efficient market without execution guarantees. Plasma relies on bonding, fraud proofs, and penalizing, which only provides execution guarantee under the assumption of no bad actors.

2017-12-12 | Full Review

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