I wouldn't say its pointless, but if you dont mark the note with the URL the likelyhood that anyone will ever enter the note after you is almost nil. Even with a stamped note front and rear I only see a hit on about 9% of my entries, most certainly without marking you would be well under 1%. I would suggest you reconsider marking your notes to get the most enjoyment from the site.
and welcome to CMT, from Quesnel BC - Happy Tracking!