> Problem #2: Google can’t see inside chats

Search engines seem to do well with Gitter. It's very searchable and the search results lead to the exact timestamp where the discussion happened.

I used to find decent support for Apache Airflow this way. A while ago they voted to move to Slack, not for any good reasons but because it was the popular place to be; The Slack setup was invite-only so search engines couldn't index it, and it was one with limited message retention, about 30 days I think. Very disappointing.