I have changed positions over the years. It does happen. I do answer my phone and read my email. I like talking to other developers and entrepreneurs about technology. Sometimes that might involve me coding for them or with them.
I don't like it when a recruiter calls me up looking to place someone they know or wanting to fill a role they have. Please don't bother me. I won't be nice to you when you call and I'll block your email.
You can contact me on LinkedIn if you want. That is what LinkedIn is for. Calling me up at all hours of the day and night isn't going to help you, at all.