More often than not companies and other institutions seem to use Slack for internal communications. They often cite convenience and feature the many features their software provides. Rarely do I hear any of the negative aspects of Slack.
Reasons to not use Slack
- All of their software is proprietary and contains trackers. The android application contains at least 3 trackers. It is safe to assume their clients for other platforms contain similiar malicious code.
- Their XMPP/IRC bridge closed down earlier this year. Citing features such as threads, shared channels and emojis as reasons to effectively force users into using their closed and proprietary client.
- They let company administrators snoop on their users. This includes private messages (even previously deleted messages).