Bitcoin Forum

I've come across some transaction accelerators posted on form. How do these work? Are they scams?

if you're talking about the bitmain or viabtc accelerator: they are legit

viabtc and bitmain have a large mining pool (they own a reasonable percentage of the network's hashrate). They both created a web service in which a bitcoin user can make a request to prioritise their transaction on the pool's mining node.

With a higher priority, there is a larger chance the user's transaction will be added to the block either viabtc or bitmain is currently trying to solve. If their transaction is in a block, and either of these pools find a hash that is lower than the current diff, the user's transaction is confirmed.

If you're talking about other services (like transaction accelerator services offered on this forum), i guess at least 90% of them are using either viabtc or bitmain (or both).

However, there are a couple users like Quickseller and macbook-air that have push privileges to other pools, so if they offer a transaction accelerator service, they're also legit, but they don't use the free tools offered by viabtc or bitmain.

Why doesn't everyone use these accelarators then if it's free and speeds things up? What advantages do those companies get from pushing peeps transactions faster through their service when they don't make anything extra?

For acceleration services provided by ViaBTC ( pool.viabtc.com/tools/txaccelerator/ ) its free for everyone but unfortunately this is limited to 100 slots every hour

To be honest I see this acceleration business as a complimentary service for ViaBTC to bring in traffic for its other services like the exchange