I try not to answer TX2 calls, but occasionally one will slip by.  But I've not seen the signal report being missing.  However, lately with 6m open, I really need to see the Grid Square they are reporting, not what QRZ might have for them and that is not shown if they skip TX1.  

I've mentioned this to a few of the folks on 6m that are unaware of the FFMA and other grid related 6m awards.  

I really wish they would remove the disable TX1 option from WSJTx.  

--
73's
George - WB5JJJ
Hamshack Holine #4969