@jswit upvoting is automated. here is the proof that upvote was done:

https://steemd.com/witness/@underground/jswit-is-a-scam

rshares(internal parameter to calculate reward on the blockchain) of @jswit's upvote is zero because vote weight is too small relative to @jswit's current steem power. maybe that's because upvote was not shown in the steemit post page.

vote weight is calculated automatically and proportional to your steem power ownership. also, you must own at least 20sp to be eligible.