Apparently, twitter polls can be used to extrapolate scientific data - what's good for the goose is good for the gander:

People's Willingness to Vaccinate Against COVID-19 Despite Their Safety Concerns: Twitter Poll Analysis https://pubmed.ncbi.nlm.nih.gov/33872185/

"Objective: The purpose of this study was to understand the public's perception on the safety and acceptance of COVID-19 vaccines in real time by using Twitter polls.

Methods: We developed 2 Twitter polls to explore the public's views on available COVID-19 vaccines. The surveys were pinned to the Digital Health and Patient Safety Platform Twitter timeline for 1 week in mid-February 2021, and Twitter users and influencers were asked to participate in and retweet the polls to reach the largest possible audience."

There are literally dozens maybe hundreds more studies using Twitter as the data source (just look at the 'Similar Articles' on PubMed for instance)