I've become a regular on Symfony's (PHP framework). It works really great for creating a sense of community. Slack is great to talk with each others and split c

I've become a regular on Symfony's (PHP framework). It works really great for creating a sense of community. Slack is great to talk with each others and split concerns between channels. The thread feature is great at keeping the main channels from getting clogged. Now the main issue is that those Slack workspace are always on free tier. The only other options would be to charge the users as it's a fixed price per users and paying $8/users/month is impossible for open source projects. Since those are on the free tier, message history is lost. You cannot leverage Slack's great search engine and community support gets lost. On a regular forum, you could search for previous questions. On Slack, you cannot.