Why do not all exchanges offer transaction batching?

[vit05]

  Some people are asking for Gemini do this. And I see that is not so common. I know that batching transaction will be slower. But there are other problems for exchanges do this? Is there any risk?

[achow101]

  Some people are asking for Gemini do this. And I see that is not so common. I know that batching transaction will be slower. But there are other problems for exchanges do this? Is there any risk?

It's mostly just slightly harder to implement. There's also a privacy risk because the receivers in that batch can see how much money everyone else in the batch is withdrawing, but they don't really know who those people are, so that's not much of an issue.

[vit05]

  Some people are asking for Gemini do this. And I see that is not so common. I know that batching transaction will be slower. But there are other problems for exchanges do this? Is there any risk?

It's mostly just slightly harder to implement. There's also a privacy risk because the receivers in that batch can see how much money everyone else in the batch is withdrawing, but they don't really know who those people are, so that's not much of an issue.

Thanks.

So I think anyone who wants more privacy or a faster transaction may still have the option to pay a premium for it. As a see there are tons of options for exchanges to implement that could help Bitcoin become cheaper and faster until Lightning network.