Hi @chrisx,
Steemvoter always uses your votes to upvote their own posts or resteems besides what you set it up form.
It's in the FAQ:
[...] we reserve the right to use one vote every day from every account to self-promote. This may not happen exactly every day and we may catch up on historical votes due in small batches.
This is mandatory, you agreed with this term when you strarted using the Steemvoter service. They are voting in your name with a 1-2% upvote on the posts they select every day. (5 times a week)
Also, two times a week they are using 50% upvote from you to support the two winner of the Steemvoter Guild contest.
The Guild however is voluntary, you can opt-out if you disable the "Guild" checkbox on your dashboard, as the picture shows above.
I hope that helps to clarify things.
yeah @neander-squirrel now i gonna be much more careful with 3rd parties ^^ was clearly my fault :-) i was so surprised and confused by seeing it and didn't know whats going on. even after checking steemd, i wasn't able to find out how this happened. moreover i wouldn't vote on something like that, because its simply not my genre. however, i have learned something today ^^ thx four your attention :-) ^^
![nothing-sucks-more-than-that-moment-during-an-argument-when-you-realize-youre-wrong.jpg](https://steemitimages.com/DQmfYbfzvCcA5VQ4TUmQm1921mU4DMFebbHsDy4rGwJ3WcP/nothing-sucks-more-than-that-moment-during-an-argument-when-you-realize-youre-wrong.jpg)