This probably doesn't come as a surprise to many, but I thought I'd throw it out there for those who, like me, haven't realized it before.
We all know that we can link to a node by using its ID: [id://789891|stevieb's home node], but some node IDs have spaces: ChatterBox FAQ. These ones break horribly when trying to use them in [id://ChatterBox FAQ] context.
After years and years of being here, I realized that at the top of every.single.page, the node ID is readily available in the on Nov 07, 2000 at 16:08 EST ( #236794=sitefaqlet: print w/replies, xml ) line, right under the by: $person line. Grab the number to the right of the #, and drop it into the id:// tag: [id://236794], and you're good to go.
I'll bet there are other ways to glean this information, and why I didn't notice it earlier is beyond me. Either way, I thought I'd throw this out there :)