[projectile]

Using Jim's opinion is a cheap debating tactic. I've seen posters do this with other issues such as the drug war. Do Jim's quotes somehow makes their opinion more valid?

Using polling data is a cheap debating tactic. Does polling data make their opinion more valid?

[Roscoe]

Using polling data is a cheap debating tactic.

Clinton supporters used to do that all the time.

Ironic, huh?

[Sir Gawain]

Using polling data is a cheap debating tactic. Does polling data make their opinion more valid?

Nope. Both are logical fallacies - argumentum ad verecundiam (appeal to authority) and argumentum ad populum (appeal to popularity).