It's not really the same. So they crashed a party from the outside and were obviously HTC?
Samsung went dirty by trashing HTC through comments and bloggers -- i.e. fighting by proxy.
No, it's the same. Different methods of course but the intentions are the same, the only difference being that HTC was more brave about it. I don't know for sure if those people were employees of HTC or not, I wasn't there but there were people in the crowd campaigning for the One, as evident by media blogging outlets in attendance and those genuinely interested in the phone.
But I still can't wrap my head around why Samsung wouldn't try something like this with the US. It's the largest market. You'd think they'd do it with Apple at least if they'll do it to a small corporation like HTC, maybe they have and we just don't know it. Either way I don't think it's dirty enough to blacklist Samsung phones throughout their existence, every company is doing the same yet differently. You may as well boycott those as well. The only difference is they haven't gotten caught with their hand in the cookie jar yet and are having the luxury of not looking foolish like Samsung is right now.