Over the past week and a half my follower count has gone from the 50 or so accumulated over 3 years to 130 with 70 or so over the last week and a half.
Given the number of views my blog gets this is a very high percentage of visitors clicking follow.
Most have no blogs. Many are not in English.
What is going on?
The most recent was a gemmamillenson whose Gravatar is a picture of Gemma Atkinson – clearly less than legitimate.
If you think any of your follower is not leg and following you just for spamming you can report his blog to be spam. http://en.support.wordpress.com/report-blogs/
Staff will review your report and will take necessary actions.