Comment by kemiller

You are not alone in this attitude, so don't take this personally, but I'm going to reply to you because you're the top comment. This is an incredibly destructive point of view. Promotion is essential to any software project, even open source, and in the vast majority of cases, word of mouth is not enough. This is an ethical, up-front, straightforward ask that costs you and anyone you might contact very little and is optional in any case. He's a solo developer. Cut him some slack.