One final thought, we need an FAQ to direct visitors to who come to this thread, so the same questions don't have to get asked and answered over and over again. Suggestions on where an FAQ can be hosted would be a good start. On the Slack channel?
Posting it in Slack sounds fine. But it would be best also copied elsewhere.
New visitors are the people least likely to have created a login. Slack requires checking email and signup before first seeing its contents, with yet another login to remember or record.
Other locations could include on the website and highlighted in the opening post of Elastic's next thread, when a new thread is created, e.g. upon mainnet launch.