Somehow I manage to get issues noticed and PRs merged. They aggressively cull old issues but if they take notice things get done. I contributed just this week.

I too have been able to get several issues addressed and pull requests merged (not mine, others had noticed first).

I had one this week that, while took some effort to explain the why, was handled better than I expected. (https://github.com/anomalyco/opencode/pull/54921)

Being the most popular open harness, they get inundated with slop and are doing their best (imo).