The culture at Slack is not the same as it used to be pre-IPO - Anonymous employee Slack Employee Review

The culture at Slack has changed dramatically post IPO. Some teams have seen change of leadership which has lead to a ruckus internally. The new leadership chose to completely disregard the previous leadership's decisions. People questioning each other's work, escalating things in bad spirit, bringing each other down has unfortunately become very common. It's very hard for an employee to focus on actual work.