Another post inspired as writing to Green_Opal, but I figured I'd put it up separately. This is a theory-post. All is my opinion, take from it what you will. Note: I can't see into your heads, maybe you're already thinking this way, if so, cool. I'm not sure how strongly I was actually thinking this way before trying to formulate it, so, I'll say it anyways.
There have been a few votes so far of the sort that say "I want to see what will happen". Starting votes on someone usually fall into this category as well, whether stated or not. If you're townie, every vote should be this kind of vote, you should always be curious what will happen when you vote (if you're Robz and only like to accuse people, I suppose this applies to the throwing around of accusations). So, you're about to place a vote on someone, and say, "I wonder what will happen, will a bandwagon develop? Will someone jump off this bandwagon? Will the accused crack and start spewing nonsense to dig himself into a deeper hole?". Well you should consider, BEFORE you cast the vote and find out what happens, what do you expect to happen based on what you know? And if that doesn't happen, what further steps should you take to verify whether you were wrong or something else happened. In other words, form a hypothesis, use your action to test the hypothesis, and analyze the result.
Now, mafia is a psychological game, and you don't really have any idea how people will react. Other things could happen to invalidate the test. You don't have to disregard your hypothesis just because it didn't work out like you expected, and you shouldn't take your hypothesis as gospel truth just because one test worked out. If your test fails, consider why it failed: was it a bad test, or a bad hypothesis? If it succeeds, figure out another test. The danger is that you'll take some action with some hypothesis, say "jo is mafia", and then see what happens. Then whatever happens you'll read as a confirmation. For example: did a bandwagon fail to materialize? ah he must be scum, and the mafia are redirecting...did a bandwagon show up? ah see he's scum, everyone agrees with me, I'm so smart.
You obviously shouldn't expose your test expectations, just use them to figure out whether you need to rethink things.