[mysterydip]

While I agree that's frustrating, you can be doing something else in that 90 seconds, can't you? Normally chats give a notification of some sort when there's a response. And by taking that long, Bob can't be expecting an immediate reply.

[dimask]

> you can be doing something else in that 90 seconds, can't you?

If I get distracted from my task, not really, or at least not as focused as I was before the "hi". Except if it is something like the beginning of the day, where it does not matter much.