That alone would be a great reason not to use them.

LaurentVB · on March 27, 2015

It's also a great reason to use them, isn't it? Your searchable chat history basically becomes the knowledge base of your company.

gaadd33 · on March 27, 2015

And a great target for discovery in any sort of lawsuit.

brandon272 · on March 28, 2015

As is email.

ncza · on March 28, 2015

To me, that is something that you should keep internal, on internal systems with vetted free software.

jsmeaton · on March 28, 2015

https://slack.zendesk.com/hc/en-us/articles/203457187-Settin...

It's configurable for paid accounts, and can be set as low as one day. However, one of the best features of slack (and products like slack) is message history and search. Otherwise, IRC isn't all that different (WRT messaging).

brackin · on March 27, 2015

It's why I love Slack. If I remember a conversation about something two months ago I go to the room, search and find exactly what I needed.