Improve Node-Editor Tooltips!

The Problem

If you have been using the Blender node editors for a while, you might have encountered this before: In fact, you might have seen it all over the place. That is because it's the go-to tooltip for (almost) every single value input field in the node editor.

In my point of view, this tooltip has pretty much no informational value whatsoever. It might aswell not be there.

Goals

• Make the tooltips unique for all input fields and sockets.
• Make the Tooltips more valuable and easier to understand

Current Example

Let's look at a node with a lot of potentially helpful tooltips and how it looks today. The Principled BSDF node comes with 25 "lines" of information. 1 output socket, 2 list dropdowns and 23 input sockets. As we can see there is one helpful unique tooltip, 19 generic tooltips about input values and 5 "lines" have no tooltip at all.

Proposal

Make the tooltips unique for all node input fields and sockets and add a description that is truly valuable for the user.

This is just a quick example, the exact nature and content of those tooltips would need to be edited and designed with care.

My main proposal is this:

• Unique tooltips for input fields
• Unique tooltips for all sockets

I understand that this proposal probably won't work with how Blenders nodes are coded at the moment. However I want to start a discussion if there would be any viable way of getting more use out of those tooltips.

Additional ideas

• Node group input tooltips editable via node properties
• Node group input types with easier data type changing (integers, booleans, ranged sliders etc.)
• Bigger node tooltip-trigger areas, tooltips for non-input-field areas (see below)