Some Slack usage data, with relevance to the two previous threads (but perhaps worth discussing separately). Only data for the past year is available. I've rounded all the numbers. We have between

260-370

people active on the slack in any given month,

80-120

of whom post. We have between

150-230

people active in any given week, with

25-70

of them posting. We have between

20-120

people active on any given day, with

0-30

posting.