I might have been wrong, but I interpreted "I is just my habit of creating some noise in any data collection effort" not as "I was curious what happens if I'll try to mess up with the poll" but more like "I don't like when people gather and analyze data, so I'll screw this up for Greater Good".
Again, it could be the motivation you put forth to, but in favor of the defendant if the evidence is inconclusive. What really bugs me is that on a site that is not entirely void of coders (There might be some around. Mayyybeee...), we use a honor based polling tool that doesn't allow for the creator to set a max number of votes per person. Now I know that creating a new poll takes time, but surely not much more than setting all the +80s font to extra large and all the <10s font to comic sans.