Here’s my list of reasons why i will not follow you back on Twitter.
1. You have no user avatar, if you don’t have an avatar how should i know who i’m talking?
2. You list no website, or no bio. I follow people that have same interests as i have, with some exceptions. If you don’t have a website and in your bio you wrote Lorem Ipsum, i will not follow you back.
3. Your website is a MySpace profile.
4. You’re following over 1,000 users, have 10 followers, and no updates or you just won a laptop or 10000$.
5. Your profile features that you are an expert (SEO Expert, Photopshop Expert etc).
6. Your always tweet about you and your website.
7. Your updates make references to any need to achieve more Twitter followers.
8. You are only talking about how much money one can make by joining different affiliate sites. (thanks @Anghus)
