You can’t judge whether or not someone is an alt based on KB activity alone. They can be a carebear, they might not have given permission to zkillboard to fetch their kills/losses, and they might have alts that they use for other things.
For example, even though Shipwreck is my first character, he is an industrialist and trader who spends most of his time docked up. Moreover, I have not given zKillboard permissions to fetch his killboard, because why would I? I also have 30+ alts which I use for various activities. However, in spite of this, I do consider shipwreck to be my main because he is my public facing character, and the one that most post people know me by. He might not be the toon that I play the most on (I don’t need to stay logged in on him that much), but he is most certainly who I am in the Eve community.
https://forums.eveonline.com/u?order=likes_received&period=yearly
Anyway, there are indeed people that do post with alts. I know at least one guy who does so in order to make his spies/awoxers look like original characters, some do so because their mains have been temporarily or permanently banned (and they will usually be quite clear who they are- i.e. Ridley Rohan), some are trolls (who tend to be quite obvious that they are trolls), and, yes, we do seem to have some guys using alts in order to engage in dirty debate tactics. What is interesting, however, is just how many times regular forum members get accused of being alts.
I mean, if you’re going to accuse someone of being an alt, maybe you should at least take a peak at their forum history. It’s not fool proof, as some people will post quite a bit on their alts, and people who do very little posting might just be lurkers, but it’s definitely a good place to start.
Speaking of which, I wonder how many lurkers the Eve forums have.
I’m just kidding. We’re actually all alts of destiny corrupted. In fact, you’re an alt of destiny, you just don’t know it yet. In fact, all this posting is making me hungry for some… blueberry pie.
Xuxe Xu, Xeux, and Xuixien are also al the same guy. I mean, their names are too similar, and the people who create alts usually like to leave clues as to who their other identities are. It’s more fun that way.