"Is there something wrong with asking one's friends to sign up and share their experiences and give us an upvote."
If you aren't aware of why asking your friends to post reviews about your site (without disclosing their relationship to you) is unethical, I'm not sure I can explain that to you.
If you aren't aware of why asking your friends to post reviews about your site (without disclosing their relationship to you) is unethical, I'm not sure I can explain that to you.