Hard. Pass.
No one can be trusted with personal data, even do-gooder researchers.
And the data will be tainted by extreme self-selection bias so in the end, how useful are the studies you're contributing to?
Also, what about honeypot "studies?"
It's easier for me to just say no.
> Big Tech has built its success by exploiting your data. It’s time you put your data to work for you, not them.
No one is going to "stick it" to big tech by doing anything other than completely locking up their personal data.