I used to do what this tool does but manually when networking. Find someone I wanted to network with then find all of their online accounts to try to find an "in." Definitely very creepy but I if called it networking not stalking and its okay right.
You can make it not feel creepy by using the research as a way to seed the conversation rather than replacing it. Ask good questions because you know [part of] the answer, but let the person decide how much they want to say in the moment.
An even better trick is to invite them for a podcast recording. Then all this research is suddenly very normal and expected.
