From the article: > In the run-up to Thursday's U.K. election, a group called Who Targets Me recruited 10,000 volunteers to install a browser extension that re

From the article: > In the run-up to Thursday's U.K. election, a group called Who Targets Me recruited 10,000 volunteers to install a browser extension that registers targeted messages, ranging from Facebook videos to Google search ads. The group calls them "dark ads" because they are so hard to monitor: They've been targeted to specific local constituencies, gender and age groups. Has anyone gone the other direction with either a browser extension or app to essentially give permission to MITM the content and metadata input into, say, Facebook and Twitter? In other words, get the data for 10,000 users input and then test what inferences can be made based on metadata, content, and a combination of the two.