In the past I thought like you - if you obliterate the fake mark, so it's just "a saxophone, no name on", that this would be OK. But upon thinking about it more, I realized the secondary market does support the primary market.
I am trying to follow this but I cannot...the way I see it, if the seller obliterated the engraving, and sold it as a 'generic asian modern sax'...what 'harm' would that cause anyone ?
What advantage would counterfeiters attain by this ?
To me, no harm at all, and counterfeiters get zero out of it....I have taken their dirty-fingered creation, removed the offense, and resold the piece of musical hardware.
Now, the problem here becomes- to obliterate an engraving, you gotta scar the finish of the horn significantly...buff it out completely or literally 'cross out' the engraving with a new engraving.
So, right there, doing the 'right thing' makes the horn - literally almost worthless. Maybe less so if you can buff it out than cross it out....but either way you end up with the same conundrum trying to resell:
either resell a horn with a forged engraving, to which 90% of people would not wanna touch,
or resell a horn which is significantly blemished albeit is playable. The latter is the preferable alternative and I cannot see how that would be harmful to either new buyer or the market in any way.