Sorry for the delay. Yes, you both (you as upvoting curator and the other user being the post author) get BYTE. The user that has staked BYTE and upvotes the post gets half of the reward with the other half going to the creator of the content being upvoted.
The amount of reward depends on the amount of BYTE staked, the upvote percentage, and the amount of BYTE voting power. BYTE voting power is very similar to Hive Power. If you use up all your BYTE voting power making a bunch of upvotes it takes 8 days to recharge from 0% to 100%. Each upvote consumes some of your BYTE voting power. At 100% BYTE voting power with a 100% upvote 2% of your BYTE voting power would be consumed.
The metadata parameters for BYTE token can be found here:
RE: Hello, World!