Does anyone have any tips on getting through to coinbase? They haven't responded to my customer support tickets. I've linked a bank account to my coinbase account from which I've made successful buys and sells; I've verified my ID by providing them a driver license scan; and I use two-factor authentication linked to my cell phone. So far so good, right?

Firstly, I opened a customer support case simply to ask why my merchant account is still pending. A little feedback would be helpful. My business is a lawful and compliant company properly registered as an LLC. I pay my taxes, brush my teeth, keep my nose clean, and always stay on the right side of the law. I can provide any additional documentation that coinbase requires; however, they've asked me for nothing more. How many days must I wait for an answer?

Secondly, I have an online store that will be selling bitcoin mining equipment. It's really quite amazing. Nothing else like it anywhere. Anyway, while I am finishing up making my long-term online store, I decided to use shopify to create a temporary store and to test the waters with coinbase, since coinbase is fully supported by shopify. I've provided shopify with the API key and followed all instructions on their end of things. However, when I attempt to actually make a purchase, I encounter the following error: "Error occured while contacting gateway : API Key does not support merchant, buttons or all scopes." Shopify says the problem is on coinbase's end. I reviewed support site https://community.coinbase.com/t/shopify-error-contacting-gateway/9041/2, which didn't help, because I actually have the proper permissions enabled (or so I think? hello coinbase?). Again, I opened a case with coinbase, but I am still waiting for a reply.

Is it normal to have to wait 2, 3, 4, 5 days for coinbase customer support to answer one's question?

If anyone could provide some insight into how I can resolve this issue in the mean time, please let me know. I'll even send some bitcoins your way if you can help me get my store up and running ASAP.

Cheers!

I want some input from experienced, long-time bitcoin miners: Considering all the ASIC miners you've mined with or experimented with…

What design flaws have irritated you the most?
What would you change about this or that particular miner?
Which miner made you think, "What were they thinking? Why did they do this?" or "I could have made a better miner than this!"
Issues that should have been non-issues?
Problems that could have easily been prevented?
Etc.

I'm not asking about poor communication from the mining companies or delays in shipping. I'm asking about hardware.

In other words, what mistakes should one avoid when developing a bitcoin miner?

I have purposefully kept the overarching question open-ended. Your answers could be in regard to any annoyance or frustration, from a misplaced heat sink or shoddy USB, or to more low-level components such as the chips themselves. Anything, just tell me your grievances. I want to learn. I don't want to make the same mistakes.


Quick background:
Over the past year, I've been researching bitcoin mining hardware. I found some investors, started a new company, and decided to cross the Rubicon and create a new bitcoin miner.

Except that our miner is not quite the same as the others. Although our company is a for-profit company, and we are contractually obligated to provide working units very soon, our mining research and subsequent design have aligned us much closer to the experimental, proof-of-concept side of mining. We're not aiming to compete directly with the traditional ASIC companies. We don't intend to sell a zillion units and overtake the ASIC market. This is an experiment to create a new class of bitcoin miners. It's more akin to the brief FPGA days of bitcoin mining than anything on the market today. We intend to change the way miners mine and the way they perceive mining in general. More on all this later. When the sales pitch is ready and we launch, I'll start a new thread.

For now, we've spent nearly all our time and energy on optimizing the source code/microcode of the miner. It rocks. It's amazing. It packs some serious hashing power. And it's coming to market. We still have a ways to go, but we're getting much closer to the production stage. Thus I request suggestions about the final design. Of course, form follows function and absent technical specifications, I realize there's only so much one can suggest. Nevertheless, I would sincerely appreciate any input from any long-time established miners.

Thank you.

edited
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I have four $15 iTunes gift cards. $60 total. The backs remain intact and have not been scratched off. I'm selling all 4 for 1 BTC. First come, first serve. USA and Canada only. PM me if you're interested.

I'm selling a 49 gram figaro-style sterling silver necklace. It's marked .925. The spring in the clasp is broken.

I'm asking for either 7000 litecoins or 7 bitcoins.

PM if interested.

I'm selling a 160GB iPod classic, 7th generation, silver color, like new condition, fully functional, no cracks, no dents, audio works fine, comes with cord, not engraved, no problems. It's been in a protective case its whole life, so it still looks good.

I'd like either 7000 litecoins or 7 bitcoins. USA only. Free shipping.

PM me if interested.

I am selling one sheet of 20 United States forever stamps (Purple Heart issue) for 2000 litecoins or best offer.

PM me if interested.

How many of you are left, who only CPU mine solo? 

Hopelessly not worth it, but perhaps you do it for other reasons? Because you can? The principle of it? Novelty? Desperation? 

Selling a $50 Trader Joe's Gift Card for 1 BTC.

[EDIT: SOLD]