The bigger problem (in my opinion) is that even if people WANT to comply, it may be difficult or impossible to do so.
I agree, this is a big problem, but the real problem here is that reporting any transaction where both parties havent identified themselves and are being monitored by a 3rd party may open onself up to being charged with tax evasion.
It will soon be very easy to ensure that you are fully compliant if you choose to. Check out ZGL wallets for one idea: