IMO this is really should be a non starter for numerous reasons.
First of all, should it really matter if somebody gets some sort of advantage by having a 2nd account? If it winds you up that much, perhaps you're taking your hobby a little too seriously.
Secondly, this is something that is truly unenforceable IMO. Somebody could set up a secondary or even a tertiary account under the name of another household member who clicks the "ok" button, and use a VPN which now cost 5 dollars per month, and then use a prepaid credit card for payment. With a completely random IP address, so long as the PC had never been used with HTC software before, they would be pretty much untraceable. I believe HTC installs stuff to monitor your hardware, as well as unique information to keep people from abusing the 2 week trial again on a the same PC or IP address, at least that's what I've read here, but again, so long as it was a different PC and a VPN IP address, a person on theory could have shade accounts up the wazoo.
HTC has more than enough on their plate IMO than to go chasing after that sort of thing, and if somebody REALLY wants a secret shade account that badly to jump through all those hoops and pay the extra $ every month - hah, in my opinion they can knock themselves out.
I rarely use the one account I have now, but I will admit I've looked over at the TV I have mounted on a swivel mount in our office, which is run from a home theater PC, and thought that if I really, really took the game super seriously, and played more than the twice every 6 months I'm currently averaging, I COULD put another account on that computer, and have a huge 60" screen to watch events unfold from another country. OHs Nos! Teh Spiez!!
I will admit that the OP question could be clarified by HTC, as I said, I could care less either way, but obviously somebody cares about it enough to ask. The language in HTC's terms of use is a bit vague IMO -
Subscribers are expressly prohibited from engaging in any activity that constitutes, in the sole opinion of HiTech Creations, system abuse
.
Ok, but what does "sole opinion" actually mean? Does that mean that the "C" word - the word/action that must not be named here - is constituted by having a secondary account for the exact purpose I outlined a paragraph up? Personally, like I said, my opinion is it would be time wasted chasing down that sort of stuff, and that with a tiny bit of effort it would be very, very tough to track in the first place. Also, if there was to be a punishment for such a thing, that would involve losing not just one customer income stream, but at least 2, since a ban would be over 2 accounts being paid for by the same person essentially, right?
I'm with ChangeUp, the bottom line for any small business should be THE BOTTOM line. Get it?
edit - Oh, and laugh out loud Tec.