I've been here 1 year and 17 days = 382 days.

I have 48 usernotes

that gives 0.127 usernotes day<sup>-1</sup> (to 3 significant figures).

Extrapolation for the end of my second year here next November, of course assuming that the rate of change of usernotes remains constant, implies I'll have 0.127 * 365 * 2 = 91.7 usernotes. Or 91 usernotes with the 92nd popping up a week or so later.