Something funny I figured you could do: by googling "site:forums.spiralknights.com name" where name is the name of a player, you can find out roughly how many pages their names have been on by reading the estimated amount of matches. I suppose this gives a moderately good estimate of forum posts you have, although many posts on one thread page will not count, so it's not very accurate. Mentions of you where you have not spoken will also count.
Here are some I tried so I guess this is a leaderboard of sorts. I'll try to maintain it for a while if this thread acquires any popularity.
- Hexzyle: 11,100 results
- Bopp: 8,920 results
- Zeddy: 7,350 results
- Krakob: 5,780 results
- Thunder-The-Bright: 5,270 results
- Luguiru: 4,510 results
- Fehzor: 3,930 results
- Nick: 3,460 results
- Eurydice: 3,170 results
- Fangel: 2,390 results
- Contri: 1,630 results
1,150 forum posts showed up under my name. I'm pretty sure I haven't made that many posts yet. I'd be surprised if it was even 100.
EDIT: I am looking back through some of the older forum posts I've had. It makes me feel bad about myself. And the typos are painful...