Well it is relevant if your talking suspicion, cause clearly a power company somewhere sent out letters informing people. In that case i don't think he was targeted and was the only one that got the letter, maybe some kinda campaign internal shit they were sending out. Bottom line is, pay your bill, don't leave hints of growing in the trash or out and about for others to see. The Police can not get a search warrant only by a electrical bill alone, they need more evidence.
I would assume.... if you live in a medium populated area there are tons of people the electric company services, so it would kinda have to be a big flag or give them reason to even look. They are just like any other business they want there money. Just don't be flipping 10k of lights. So if you don't give the cops a reason to look in the first place... then i would imagine you don't have an issue.
I know where your coming from because i am in a non friendly state so the thoughts do cross my mind as well. I am not trying to run a 10k setup lol, but i would imagine if i keep it under 3k then there shouldn't be an issue. Now i live in a fairly large home, its not like i am pulling 3k out of an apartment. I bet that would look suspicious.
I seen someone post awhile back, not on here i think, that found a shitty hot tub on CL for 100 bucket and stuck it next to house, just in case someone was to walk up they could easily justify the usage. If it was ever in question. I have in the past gotten letters stating something to the effect that "your power usage is higher then your neighbors here are some tips for lowering your bill"
Anyway thats my take on it, its not illegal to use electricity just pay for it.