I'm concerned that websites which abuse Slack like this are going to ruin Slack's free tier for those of us who rely on it for more legitimate purposes. I cannot possibly comprehend the mindset behind someone who would choose to use Slack for these purposes when IRC has existed since the 80s and accomplishes the same task much better. Nor do I understand why we are leaching onto Slack when Hipchat has existed with a similar free tier for a while now.

And it is abuse. From the company itself: "these communities are not something we have the capacity to support given the growth in our existing business." [1]

[1] http://thenextweb.com/insider/2015/03/24/slack-is-quietly-un...