People that love to use your product and that believe in your mission are the greatest marketing you can ever have. No paid ad or paid influencer in the world can compete with word of mouth.
@markosaric I have doubts. Fanboys and zealots can have a negative impact. My favorite example of this is Arch Linux, but fortunately it seems to be recovering from it lately.
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.