Poor-quality votes get thrown out and earn little-to-no Karma. Adhering to the following guidelines will ensure your votes are high-quality:
1. Always be honest. Treating people with respect is important. But you aren't helping anyone pick their best photos if you give inflated ratings "to be nice." It's impossible for you to tell whether a photo of a stranger is "the best that they can do" or not. Frequently people test photos that score very low and others that score very high. By simply being honest, you'll help them sort the good from the bad.
2. Rate based on how you feel about the person, not the quality of the photo. (The latter is best addressed in the Notes box.)
3. Ignore logos and watermarks. Most commonly: LinkedIn logos from profile photo imports; photographers' watermarks present when users are choosing images to purchase.
4. Don't assume that the person in the photo and the user who uploaded it are always the same.
In choosing Photofeeler's default traits, the team consulted academic research and asked loads of people what they think and feel about photos on LinkedIn, Facebook, OkCupid, Tinder, etc. The findings were then narrowed down to foundational touchpoints.
A great deal of research went into choosing the traits, but that's not to say they won't ever change.
The short answer is: it's not possible to vote again on the same test.
In most reported cases of seeing the same picture, the photo in question is just slightly different than the original. One factor at play is that Photofeeler intentionally spaces out photos of the same person. So by the time a voter sees a picture of someone they've seen before, the details have become fuzzy.
Alternatively, it is possible — though less common — that a user started a brand new test using a photo they've tested previously.
In any case, please continue to vote respectfully.