Since i am banned i can no longer access any of my posts.

What you can do is this:

Look for the comments in areas where the articles talk about Apple, Microsoft etc..

Look for the vote tally's (Hidden comments will have the same downvotes) +/-(3-6votes) as the next comment. (next comment has similar votes that are upvoted).

You will notice the hidden comments in these type of articles are usually enough to warrant investigations themselves.

I did as you suggested but saw no trends that would suggest organised manipulation of comment votes. As for "paid shills", that is entirely supposition on your part. Be aware that there are genuine "fanbois" of Apple, of MS, of Android etc, who are often vociferous and even mob-handed in their devotion. This doesn't imply any orchestration or even complicity by Arstechnica.