Would you be willing to confirm your phone number with Warpcast via SMS (wouldn't be publicly visible):

1. Gave you an algo boost
2. You could see other users verified by Warpcast

from what I've learned from modding a Discord server, it's very easy to get burner numbers to verify accounts

Their implementation was already supposed to be blocking VOIP. I think the numbers were coming out of East Europe or Africa? It hasn't been a problem for us over the past year, so they've done/fixed something.

Much harder if you don’t allow VOIP and combined with other methods.

Yep. You can get a monthly subscription with multiple lines, one one time burners, etc.