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Both deeds are benefiting on others' expense.
I thought I explained in the article how it takes away from other accounts, but I will repeat it in different words for you and anyone whom will ever read this exchange:
The benfits of upvotes, be them either SBD or SP come from a reward pool that at least in SP case comes from inflation of STEEM.
More upvotes is more inflationary to STEEM, and more significantly, it drains the reward pool quicker and puts it in abusers' wallets (abusers are users of multiple accounts) and in the case of bot accounts, they even achieve their goal easier, since their bots do most of their dirty time consuming work including logging in and logging out repeatedly, and voting and timing of voting and other time wasting stuff.