At Discourse we applied:
.rc-message-box {
padding: 2px 24px 24px 24px;
}
.rc-message-box__typing {
top: inherit;
bottom: 6px;
}
This emulates what Slack does and kills 22px of whitespace above the composer.
Is this something that should be applied to Rocket Chat?
(also, we need a better category than uncategorized here)
I believe in 0.58.0 and earlier the indicator was actually below the input. Its a very recent change where we moved it up.
As you might be aware we’ve been giving Rocket.Chat a pretty big facelift kind of piece by piece.
I know this particular choice was as a result of the redesign. I think might have been influenced by a few regular issues encountered.
Primarily around there just not being enough real-estate.
Imagine you have a case where you are on mobile web. Tiny amount of space, and then you have two people typing at the same time you are.
aaron.ogle and someonewithalongusername are also typing
I can definitely understand the desire to remove the whitespace. Its especially noticeable when scrolling 
I’ve create an issue to look into it: Reduce white space above messagebox · Issue #9214 · RocketChat/Rocket.Chat · GitHub
Totally get that, but the problem I have is that this ends up compromising desktop just to keep mobile happy which is not ideal. If mobile needs a magic adjustment it can always be applied via media queries.
Point of reference on one, we have been using it below now for quite a few days and everyone seems fine with it.
Seconding this. Having it below on desktop makes a lot of sense.
There is a now a PR open to move it:
https://github.com/RocketChat/Rocket.Chat/pull/10880
But its actually moving it so its at the end of message list… So not always visible. I think still needs refined a bit.