Quote from: bitart on August 25, 2017, 10:03:26 PM

Quote from: franky1 on August 25, 2017, 09:26:14 PM

to answer the OP's question....

no it wont empty the mempool.. infact it will fill the mempool

the only way to utilise the "weight" is to first move funds out of old transaction format (legacy keypairs) and then spend again in new segwit transactions (sw keypairs) then and only then would the segwit transaction utilise the weight area.

the issue with this is if everyone was to move to use segwit keys to even get close to a 2.1mb weight estimate.. everyone has to move their funds out of old legacy keypairs..

there are millions of UTXO's using legacy keypairs, meaning alot of spending needs to occur BEFORE its treated as segwit based funds..

And how does it affect the 'dust'? If I need to move out my balance (gathered up from dust) to a SW compatible address, I still have to pay the high fees first (because of the several inbound transactions of that address), and only after I will enjoy the benefits of segwit? If this is true, despite of switching to sw or not, do I have to pay the high fee at least at the first time?

No. It just means that fees will be high for some time until people start using Segwit. When other people start using Segwit instead of regular transactions fees for all the transactions should lower since there will be more space in blocks for them. You can just wait until fees drop, then you can move that dust in to one input that could be Segwit or not.