I received a message via LI from someone who wants to talk about doing business with one of my sites. It's a legit company and it would be relevant to my website to partner/affiliate with them. I ignored the message. Why? Because if you want to talk to me about my website then you should contact me via the website you want to talk to me about.
We have contact forms in place on most of our websites. I can't be running all over the place talking to people on various social media sites. If someone read my LI profile and wanted to offer me a job, partnership, or opportunity to make money then I'd probably talk to them. But if you want to put something on the table for my website, then you should contact me via that site.
Does that have you shaking your head in disbelief thinking I'm crazy?