Contact People Who Like Your Post In Groups

Has anyone tried contacting (sending a private message) people who like your posts in groups? I’m wondering if it is effective, like messaging people who follow your account on Instagram.

I believe people don’t like it. At least I wouldn’t. Facebook is somehow more intimate than IG.

Yes, I tried. An excellent way to establish contacts and relationships. I have commissioned professional agency. I do not have enough time to talk to people and they have done a great job.