[SPBS]

10 message email chains aren't the only alternative. There can be a prominent "I need support" button that pops up a chat widget when clicked. Or a "chat with us about pricing" button that pops up the widget when clicked.

Instead what we get is an always-on button that takes up mobile screen real estate.

[seanwilson]

There's no perfect solution but a small floating mobile button in the corner doesn't seem like a big deal if you know most of the time people on your site are going to be looking for support or sales info.

I don't think anyone is advocating a chat window popping up automatically if that's what you're getting at.