We do not include utilities, but it isn't a "more money for me" situation, so your poll really introduces a lot of bias.
If they were included, the rent would be adjusted for that.
However, we believe our tenants individually set their own habits and thus pay for their own consumption.
Since our utility use is so low, we would always be stressed about tenant usege because it likely would be much higher. If we did get a tenant who was likely to conserve then we would feel we were cheating them since we would have to base our rents on the wasteful tenant so as to not lose money.
And if for some reason bills don't get paid and there are shut offs, it is their responsibility, not ours.
We have a single unit and the law does not require we cover any of these services.