As I recall, Wildcat was one of the more expensive BBS packages that was still within reach of hobbyist budgets--I want to say a license for a single-digit number of nodes was between $200 and $300 in mid-90s dollars (around $450-$650 in 2026 dollars)--so it's not surprising that it would have been mostly older people running it. IIRC, it was pretty popular where I grew up, and the demographics in that area definitely skewed a bit older.