It's well-established that Hunter, the erstwhile artist/international entrepreneur, is a massive, odiferous POS.
I think mom is overestimating the benefits of that last name, but this is probably her one opportunity to cash in.
The kid, as usual, is the one who will have to ultimately deal with the fallout. That's where my sympathy lies. Hopefully a positive influence will show up, because she's not bloody likely to get it from her paternal DNA contributor.