Should I trust a sign on the side of the road

[Liz Garcia]

I'm wanting to start wholesaling. I happened to see a sign on the side of the road that said, "Real Estate Investor assistant. Make up to $20k a month. Text name and email". Does this sound shady? If it's something I can learn from while starting to wholesale I'd be excited to do it, but feel weird about sending someone my contact info that I don't know.