if by 'conspiracy theorist' you mean the literal definition, then you're talking about anyone who theorizes regarding the existence of a conspiracy. There's nothing wrong with that.
If by 'conspiracy theorist' you mean someone who suspects the government or corporations of foul play, then don't forget about 'government surveilance', one of the biggest conspiracy theories of the last several decades - until it turned out to be true. (did you dismiss them as well, before snowden put hard evidence behind the reasonable speculation?)
Either way, you shouldn't talk down to people who find minimal, available evidence worthy of speculation. It's not conducive to reasonable discussion.