Could you give some examples of "bad things"?

The only changes we could make to the coin would be software updates and adding new features to the protocol (like shipping information, for example), not change the ledger or individual balances. Just like any business, if we change the product and customers don't like it, that hurts us much more than it hurts the customer. I edited the original post a bit to clarify this. By "non-decentralized" we mean that there are tiers in the network, not that the entire coin runs on our server.

Not being able to change the core encryption method of a coin like Ethereum or Bitcoin without a hard fork is a massive limitation, we want to overcome that.

I'm working with a company that is making a distributed encryption (but not truly decentralized, but with decentralized tiers) interchange replacement for banks. One of the issues we're solving is the high cost of mining and third parties that makes most coins infeasible for payments.

We're planning on releasing an open market cryptocurrency based on our interchange-replacement technology, to help bridge the gap between bitcoin and dollars for our non-tech-savvy clients.

I know the guys here at Bitcointalk can be very opinionated about these topics, so before we launch, I want to get some unbiased feedback on the theory behind our coin to see if it would be accepted warmly or not.

Purpose:
1. Currency Exchanger for our Clients to be introduced to Bitcoin
2. Speculative Coin with no inflation rate and a closed supply
3. Teambuilding and Fundraising to attract devs and investors to the Project

Things that make it unique:
1. Not blockchain-based (We're using a custom back-end with open source API documentation based on Stellar/Ripple)
2. No inflation rate and No mining

Tech:
1. Uses multi-tier nodes, personal, professional, and business nodes have different permissions and encryption algorithms.
2. Business transactions = longer hashes, more security, personal = shorter hashes, faster confirmations
3. No required Mining (Our clients and nodes run their own servers to prevent 51% attacks)
4. Integrated chargebacks, shipping information, etc.
5. Webapp AND desktop client access, Linux and Windows support

Economics:
1. Coins distributed via open market/foreign market exchange and as payment for bounties.
2. Floating point price with the infinite premine used to reduce volatility
3. Pegged BTC exchange rate from developers

We can (and do) deliver on these things, our team has been involved in crypto for 3 years and fintech/finance for much longer. Our current backers and clients are very open to this idea, but we also know that we need the support of the crypto community for this tech to ever be accepted in the mainstream. This topic is a proof point.

Personally, we don't think that decentralized is the way to go with virtual currency tech, especially in the real world with investors and businesses at risk. But a multi-tiered, open market currency aimed at real world transactions? We think this is a great idea.

Do you?

Because of the large-scale cost of mining and buying in/out of bitcoin, it's better suited for illegal activity (where people will pay more for a decentralized system) than actual payment.

I sold all my bitcoin and put the money toward blockchain technologies and business applications.

A vast majority of Bitcoin's prices can be derived from energy cost via mining and speculative investment.The most recent rise has been driven entirely by the halving of the mining algorithm, and it will follow a similar trend. Bitcoin will continue this boom-bust cycle until it loses its monopoly on the speculative market.

Altcoin markets give a good testbed for comparing various mining groups, and they follow identical trends but with different variables.