Hi There,
There might be a slight inconsistency in the highlighting of nodes via their IDs:

What is shown is the links of a link in node inside the information box in the sidebar: when I click on the IDs (of the link out nodes) nothing happens, i.e. no highlighting. On the other hand, if I have an ID in the debug panel and I click on it, the corresponding node (in this case the function node) is highlighted.
This surprised me since in the info box the links of the link in node are shown so nicely that I would have thought a click would be possible.
Of course, the alternative is copy, find, paste ... but that's an alternative!
The list of links are just data and don't have any context so I don't believe there is a way that the debug panel can link them as node ID's. In the other cases, they retain some context as node ID's and so the debug panel can create links from them.
No that’s not right because in the debug panel any 16 hexadecimal is assumed to be an ID. The field i clicked on was called ‘src’ (as opposed to ‘source’ in an exception msg) on the msg, there is no external indication that it’s a node id.
So the same assumption can be made in the information panel and there the type of the node is even known, hence there is also context. Hence if type “link in” and field name is “links”, make values highlight nodes.
OK, maybe because the data is in an array instead of a single property then?
Honestly, I didn't even know that debug treated 16 digit hex values as node ID's! 
But the integer thingy you do know:

That's a great feature to be able to toggle through hex and decimal representation of values. I still thing a binary and octadecimal representation should be added to that ...