My take on the thread you linked is that the OP felt more comfortable and confident with the write-up Tradesman1 posted than with your brief suggestion as to Voltage. The BA was selected by the OP and it's always what helped them most that constitutes the solution. If another Mod had selected it, given that Tradesman1 is also a Mod, you may have had a case to make but for my money, I would have more confidence in his advice.
If you dig up any more, please post back here or PM me but I think our CM, Joe has nailed it - you had a mail because you'd posted into, and subscribed to that thread.