Since cowtool is now account-based plus IP-based, it should be easy to isolate/work out a model

I liked the AwardNexus model (not fully PAID model like EF)
Free tier with credits (say 100/day or 1000/month?), you can BUY more credits if you want.
They also have Elite tiers for VIP's which can reset/refill
And it'll tell you # of credits when you search (# of days x # of routes basically)
This should avoid sharing, since it's still # of credits-based

I actually have no Aeroplan travel for 2023, so I'll stop using it to save cow some $, LOL