I for one would find some implementation of this useful. I currently achieve that affect by making sure I have visited the homenodes of Monks of interest, combined with a good colour scheme which differentiates visited and unvisited links I can find their nodes fairly easily. But it is very brittle and any of the following break it- if you visit a Monks homenode for some other reason, if you clear or loose your browser history, you work from multiple computers, browser history times out after a while (9 days is the default for Firefox).
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Do not seek to follow in the footsteps of the wise. Seek what they sought. -Basho