That's what they did. They also explained why they removed Dwolla as a payment option and alerted the community to a serious fraud risk. Big exchanges are not the only things that take Dwolla.

Regarding Dwolla's facebook page: Do you guys think that a bomb of 10k postings from different facebook users there pointing to this thread would give them any chance to delete them? 
That CAN be arranged! The 10k number can even be multiplied several times

Dwolla and CampBX are discussing a solution to the problem and everything seems to be going fine. MtGox is ok with this (I haven't heard anything from them). Why is TradeHill the only one being ignored? This doesn't make much sense to me...

Maybe MtGox and CampBX are just "experienced businessmen" and just know when to be discrete (as in just keeping their mouth shut, accepting a little fraud as part of the way business is done, and keeping everyone else—including customers—in the dark about it.) 

Why am I not terribly surprised?

The fraud risk mostly, I think. ACH transactions are very definitely reversible and have a somewhat high fraud risk attached; if TradeHill were to start accepting them directly they'd be out a lot of money they'd never see again every time a fraudster used an ACH transfer from some random victim's bank account to buy bitcoins and transferred them out. (What's more, you're not going to find any payment method that's as cheap or easy that's not also reversible: non-reversible transactions require considerably more security, which costs both money and time.)

Dwolla seemed to offer a perfect solution: they appeared to swallow the substantial fraud risk associated with accepting ACH transfers for the low, low fee of $0.25 a transaction. Of course, if it sounds too good to be true it probably is.

Mt Gox confirmed some transactions have gone missing on IRC and possibly a post. exchangebitcoin.com confirmed it and isn't accepting Dwolla, Bitcoin7 isn't accepting Dwolla and I've been told they confirmed the chargebacks.

It's 100% possible that CampBX didn't receive any chargebacks. If I have to guess it's because they didn't have the open orders to justify defrauding 5k or they thought they would get caught faster with lower volume to hide in. If that's the case good for them. Dealing with fraud isn't fun. I'm assuming if they continue to accept Dwolla and nothing changes they will see fraud.

Jered

Valid question, we are willing to pay out of our own pockets. Had this been higher and we couldn't cover it ourselves yes they would have.
If another exchange is down 50k 100k or 500k and can't afford it then they could go under and their (which a lot are also ours) customers will be hit hard.
It's possible that our mutual customers are going to lose money but it's too soon to say for sure.

To sum it up: We're not going to pass the fraud on to our customers like Dwolla has done. It stops with us because we will eat it if Dwolla doesn't do the right thing.

Jered

So does Gox not even know how much it's in the hole for yet?

Excuse the repeated question Jered, but did any of your customers lose money in this?  That's really the only concern I have.
[/quote]

Let me also clarify.

We do not intend to pay for Dwolla's mistakes. Tradehill will not be responsible for the mistakes of others. We only take full responsibility for our own mistakes. Dwolla needs to make good with us and the community.

Dwolla has already refused to respond and only admitted in one email - right before we went public - that 'charge-backs' did/do occur. After which, they promptly changed their TOS on July 25th (the day we went public). Everyone knew they promoted and marketed 'no charge-backs' and this is what made them so attractive to Bitcion exchanges. Why? Because exchanges could credit customer accounts 'instantly' without the risk of loss. Note that none of this explains why transactions just disappear/appear on past statements. Gox, Bitcoin Exchange, and others have now stated they also found errors in Dwolla data.

If Dwolla does not cover the losses incurred from their inappropriate advertising and data inaccuracies, then we will take legal action. In the meantime, we will make good with our customers from our own pockets. We hope people realize what this means to us.

Adam  

[POLL] Will you reverse your Dwolla transactions?
http://forum.bitcoin.org/index.php?topic=32354.0