Is it true that Libras are super gullible and fall for everything?

no that's obviously NOT true. Libras are very intelligent and take everyone by surprise because people underestimate Libras so much.

If you want a proof, go check Judge Judy's chart. She has Sun, Mercury, Mars, Neptune, Venus ALL in Libra and i think gullible is the last thing to describe this incredible and intelligent woman.

the ability to see both sides of everything is a sign of intelligence because it gives you proper tools to outdo someone else and know their real motives. Libras are usually very aware, but they rather side with fairness and harmony. They hate confrontations. But that still doesn't make them gullible.

Libras try to see the good in every situation in order to find balance even if they are not totally happy with the outcome.

Not really, they like to weigh out both options

The "type" to believe anything are people who let themselves be that way, such as people who believe astrology.