nor have I done anything that resembles anything a Doppelganger would do...
Assuming the doppelgangers are bluffing an odd amount of times.
It's mafia. Everyone does everything. The mafia acts like townies. The townies act like mafia. The aliens act like aliens.
The point is, yes you have. You have tried to steer votes to active players. You have joined someone against a player who hasn't said anything suspicious. Lurking, yes. But hey, in comparison. I would say nay, you are doing things a doppelganger would do.
Heck, everyone is doing something a doppelganger would do. On account of the three (generalised) options: Speak a lot, sway the town; speak a bit, bandwagon; lurk, and survive by unnoticeability. However, there are also good reasons for the town to do so. Speak a lot, find the mafia; speak a bit, have a role; lurk, and survive by unnoticability.
Made an excel chart? My friend, such participation is a brilliant way to assure people of your innocence. Your actual innocence is unimportant.
So yeah. You are doing stuff a dopp would do.
But cheetar's quick bandwagon is also suspicious... and rest assured that if you are innocent that you will not have died in vain. Those you voted for become unsure qualities.
+dammit so many posts:
I'm town, and you[the cop] better check the two biggest OMGUS votes ever: Solifuge and Beacon80. After that, check Cheeetar.
I ask the cop not to listen to this (completely): Cheeetar is yes suspicious (assuming web turns out town, which I'm not so sure of). Solifuge mayhaps. But take people at random; that really stings the dopps.