I'm a bit confused about "alt voting", this is definitely not clear to me. I'm assuming that this statement assumes different votes from different avatars coming from the same IP address?
I never assume that people logging in from the same IP address are simply alts from each other - that is rarely a "binding" definition. They may very well be different, legitimate citizens, sharing their connection. Roomies, partners, couples, family and friends, often share their Internet connection while logging in to SL.
I can only give my own example. Every day, due to my personal schedule, I log in from three different locations - and there is only one where I have a "fixed" IP address (my workplace in the afternoons). On all the others there are many people sharing the connection - in the mornings, up to 8 people may be logged to SL at the same time; in the evenings, usually just 2. None are alts from each other, but separate accounts.
To confuse matters more, some of these people share credit cards (better: generated virtual credit cards, a practical system I subscribe to, that reduces Internet fraud - your real card number is safely hidden away when you shop on the Internet, you just get a valid virtual number from Visa for one-shot transactions). This means that my roomie and her boss often use my credit card when updating their accounts

More complex than that, I even have access to some avatars that are
not linked to any credit card at all (yes, yes, surprise, surprise) but use a different method for paying Linden Lab. To make things worse, I do really have an alt for testing purposes - Sandra Fatale, avatar key 34cf15e7-de77-445c-b323-4f2745f8e402 - which I seldom use except for doing some tests (Sudane may well remember those

). So I guess that people trying to track me down will have a wonderful time doing so. They'll probably reach the conclusion that I have something close to 40-50 alts and use perhaps 80 or so different credit cards, log in from 12 different locations regularly with my own account (assuming that all of those had a fixed IP address, which they haven't, but a good tracker will see the geographical distribution of those locations, and probably figure out that these 40-50 avatars always come from the same 12 places) and that I am really a fast typer on up to 8 simultaneous connections

Worse still, I'm clearly insane, since I have the habit of talking to myself very often and for many hours.

Clearly, the theory that "these two people share the same IP so they are alts" is too simplistic. To the best of my knowledge, none of those 40-50 people are currently Neualtenburg residents (Moon Adamant, my roomie, used to be a member in the Anzere days, but she doesn't own a share in the "current incarnation" of Neyaltenburg - I'm pretty sure of it, since she always gets my credit card for paying her few Internet bills, and she hasn't done so lately

) So, I'd assume that among the 17 residents, eventually some share connections, or at least shared those connections during the election procedure, or they are really alts from each other, but own deeds in Neualtenburg separately, and thus, each alt is a rightful citizen - which is more than fine.
Anyway, like Sudane clearly put, I don't see a problem with alts voting. After all, either the booth works for everybody, or it just works for the list of current citizens. In the first case, well, I can see that there is an educational process in watching that amazing procedure actually work, and I never disagreed with non-citizens being allowed to test it out for themselves. But I always assumed that there was a simple, clean, and elegant way of knowing which votes count, and which don't - after all, the valid citizen list is publicly posted on our website, and I assumed that the booth "knew" who was a valid citizen before sending the vote to the website.
So, if by "alt voting" something else is meant, I'd like a clarification, please.