Merchant processing alternative

[mokimarket]

Instead of issueing a random address for payment with each transaction, couldnt you just assign a unique ID to each user to the end of each payment?

So if user #43 in your sytem wants to purchase something worth 1.542 bitcoins. Your system would request that they send 1.542000043 bitcoins, where the 000043 would be the unique identifier for that account; you could also generate a random sequence per each account.

This is the system I am implementing on mokimarket, what do you guys think?

[DeathAndTaxes]

You certainly could but why?

If user has a typo then they don't get credit for their funds?

It is too easy to generate a unique address for each user.

[mokimarket]

You certainly could but why?

If user has a typo then they don't get credit for their funds?

It is too easy to generate a unique address for each user.

I see your point, I just figured it would be just as easy to copy/past unique address as it would be a unique payment. And user would still get credit, it would just take longer.

Another advantage is that I can store my wallet offline; wouldn't I have to have my wallet.dat file on server if I wanted to generate unique addresses?

[DeathAndTaxes]

Your wallet wouldn't need to be online (or at least not on the store server).  You can pre-generate 100,000 addresses and only load the public address on the store webserver, giving each user a unique one from the list.  When the list runs low you could upload another 100,000 addresses.