I've read 3 posts on this site and the look as if they were written and answered by different people: BUT the person posting the question that has a different name each time just happens to be 24-years-old and skinny. Then the person answering the posts all use the phrase "you probably didn't know this..." It is for certain that these 3 posts - questions and answers were written by the same person. And if I just happened to find the first 3 were a sham, it is not unlikely that the vast predominance are all fakes - posts merely put up to increase traffic and to get readers interested enough to get advertisers to believe that they have actual readers posting questions and answers. The thing if it is, they are perpetrating a fraud; they do not have actual readers that post questions and interested readers posting answers for other readers to learn from. They are paying some hack to post the fakes. AND they are poor quality fakes, at that!!!
Allow me to expand on that: 
A lot of web sites pay people to post questions to prompt answers. But when a person is being paid to post questions and/or answers you would think that the web site that is paying for the postings would be more picky about the quality of the writing because these questions are worded very poorly. The sentences are fragments and they hardly can be considered English. The person writes as if English is not their first language. The answers are poorly written too. Why would a site that wants to be taken seriously put up posts that make it look like a complete and utter joke!

Here is some serious advice: Go through all of your postings and select the ones that are written by this person that not only writes poorly but has very little imagination and do it soon. It is no wonder that these posts are from "over a year ago" nobody visits the site because it comes across as being a "joke". 

You can have that bit of help for free. It may just assist you in improving your web visibility, including but not limited to the number of eyeballs you aggregate and the number of unique hits you get each month/week/day. 
Take it from a pro, you are now on notice and if you don't take action you will forever been an amateur. 

Sincerely, 
Wordsmith Extraordinaire