so I think only KYC verification will not bring any special bonus for any users.
Stake users have already received a bonus from KYC verification before October 7th yesterday. what you get is a monthly bonus. but Stake is currently giving a special bonus for users who complete KYC early before the deadline all Stake users must be verified early next year.
the bonuses given by Stake vary. some get $10-$250 just for KYC level 2 verification. if you have a Stake account you must have received the email. Stake has done it, and users who have completed the event can claim their bonuses.
He probably not aware on the exclusive bonuses given by Stake to non KYC verified to verify their account before the deadline. Stake is slowly making KYC a mandatory by introducing different bonuses in exchange for voluntary KYC of users.
AFAIK, they usually increase their bonus reward like x2 the rewards on their forum giveaways and also they do code drop exclusive for KYC level 2 verified. Their recent move is now more generous to seduce users to KYC which I probably done myself if I will get 250$ bonus no string attached given that Stake is reputable enough to protect my data.