Another interesting exercise that can be done for a given local board, which is quite revealing, is to break down the number of active posters on a given local board into groups, based on the number of posts that they've made.
For example, the 260 active members on the Spanish local board seems like a pretty high figure for what I normally see over there, but if we break it down, the data looks like this (Ive also got data for prior years, as Ive been updating the chart on my local board over time):
(Data derived from ninjastic)
Looking at 2022s data, it turns out that 188 of those 260 posters (72,31%) are actually accounts that have created 1 or 2 posts on the Spanish local board. On the other end of the scale, only 14 people are kind of regulars (50+ posts on the Spanish local board during 2022), a figure that has been clearly decreasing over time.
One could then go deeper and see where those sporadically posters actually post (likely Altcoins, or even random spammers posting a link to who knows where), but I haven't taken it down that road to date.