[Shorel]

The problem with IRC was the channel wars, the hierarchy of founder, ops, +v, etc, and the crazy medieval hierarchy that ensued from it.

The easy of use of bots and flooding scripts was a downside, not an advantage.

Any web page that embedded IRC had to deal with that nonsense.

[jarek]

On Slack the channel owner will form a hierarchy too, if it's less problematic it's because Slack is usually used in a professional setting where flaming is generally frowned upon. You see these kind of issues pop up on the easy-to-use Twitter as well.

It's a social question. The most the tech did wrong was not making flooding impossible in the first place.