I really don't understand the allegiance to Bkool. It really is a poor platform with its bugs and with what seems regular SIM crashes for days. Why don't those who haven't tried another platform, sign upto one for a month, give it good go to gather experience and then have a direct comparison with Bkool There are plenty of excellent training platforms to have a go at
I've used Zwift on and off for about a year now, but I always end up coming back to Bkool as I personally (my personal view) find riding the same courses on Zwift a bit dull. Zwift racing is good, but I prefer to race the same people each week as this is where/how I like to compare my own progress and, ironically, due to the high number of racers on Zwift I don't recognise anyone

I really did enjoy the race you and I had the other day so if we could get the CCers over to Zwift, and we chose the same races each week this could be fun.
I like the leagues in Bkool which no one else really does, although Keith's spreadsheet can replicate that so that USP is now going/gone
I like racing ghosts - gives me something to chase when I'm on my own. If BRVR had the concept of ghosts then that would be another Bkool USP gone
I like that I can choose a flat course, rolling course, downhill, hilly, Velodrome in Bkool. BRVR has hills and rolling by the looks of it but no flat. Although, someone did suggest you can create your own 'course' by stitching bits of others together so that might be the way to go. Need to check that out.
I'm certainly not tied to BKool. I've tried to leave twice but drift back due to, as I say, Zwift not being able to hold my attention as the same courses all the time are just a bit dull.
Maybe the way to go is BRVR and Zwift ... but only if we all go Zwift for the racing as that's what I really love
Bkool is next to dead in the water I'm afraid. So much potential, just run by idiots.