Even now we don't need to pay any taxes to the crypto to crypto transaction because it is anonymous and no one knows that we are using it.
read again!
it is not crypto to crypto transactions that the news is talking about it is
crypto to goods. for example if you buy a phone or a camera or a car or a cup of coffee with bitcoin, you don't have to pay any additional taxes.
this will create a huge incentive for merchants to adopt bitcoin. and if you like to know the effects of it, look at Japan and last year's growth in number of merchants (lots of offline stores) in Japan accepting bitcoin.
This will be a very good start for the bitcoin's mass adoption. If merchants will start to accept bitcoin (at least some of them) the others have to join in order to preserve their market share. If a merchant will accept bitcoin soon enough, it's name (the name of the shop) will be a well known brand among bitcoin users and this can help the merchant cover a market gap and create some extra profit (the people willing to spend their bitcoins for everyday things in shops or online can be a large new customer base for the merchant).