[Wiki-research-l] Research around the use of MassMessages extension

Hello everyone,

I was interested to know whether there has been any research done around the use of the Mass Message mediawiki extension and in particular about impact of using it.

By extension, I am interested in any research that might be related to the impact of posting a "template" message (as opposed to an individual targetted) on a user talk page. I know the SignPost did a poll in 2017 to evaluate the interest of switching to the Newsletter extension system. And I remember reading about impact of notifications. But are there studies related to the measure of impact in terms of engagement to mass posting on user talk page ?

Thanks for any insight you could provide

Florence