I built a tool that auto-fills LinkedIn messages. Do you know anyone who'd pay for this, or some extension of it?

I built a tool that auto-fills messages on LinkedIn with a message you can set, automatically pulling the recipient's first name for you, so you don't have to type it out manually.

I asked a recruiter if she would use this, and she told me about another tool, which I checked out, and that tool does what my tool does, plus a lot of other things, for free. Not only that, but it's also open source. There's 100,000 users of it, according to the Chrome Extension Store.

So, I decided not to publish my tool. How much potential do you think it has? Would you or anyone you know be willing to pay for it, or a product built on top of it? If so, how much?