Please DENOUNCE any polls brought to DU that are NOT from reliable

[Hortensis]

20. Poison polls is a classic trolling technique, tho.

Ignoring and letting drop is best, but sadly, the more outrageous and frightening, the more commentary they tend to generate.

Also sadly, major media often knowingly use sensationally bad polls as excuses to create fake drama and controversy, so appearance in "mainstream" sources in itself means nothing.

I suggest when ignoring won't work challenging strongly, and even considering whether a poll should be alerted on. Most of us have seen so many by now that we know when to suspect then. But trying to think of, like, when polls reflecting badly on Democrats are

1. Outliers, contradicting the body of respected polls.
2. Explained to be biased and unreliable by experts.
3. Dismissed as invalid, not listed, not accepted for averaging by even one poll aggregator.
4. Shown to come from or be pushed by hostile sources.
5. Not published by known reliable pollsters, i.e., obscure sources.

There are no doubt other signs too, but poll that meets even one of them is very likely to be confirmed by others. We had a blizzard of them in 2016.

Note that outlier polls used in those UCLA analyses that predicted Trump's win and contradicted almost all others would not meet these criteria. They were seriously discussed by experts, who didn't know what to make of them but did not dismiss the source.