True. A single $3 coffee transaction can also be considered spam, at least by *some* people, compared to settling e.g. 500 different $3 transactions from a second layer in a single tx.

Similarly, that second-layer tx settling 500 coffee payments will also be considered spam by *some* people, because the same second layer may be used to trade monkey JPEGs or whatever the hell the market thinks is worth something at any given time.

To each their own, as long as they pay the fees.