Please don't break the HN guidelines by insinuating this kind of thing without evidence—they're quite explicit about that (https://news.ycombinator.com/newsguidelines.html), for good reason because most such insinuations are just pure perception. The internet is a bit Rohrshcach diagram that way.
If you're worried about vote manipulation, that doesn't mean you should do nothing! But what you should do is email hn@ycombinator.com so we can investigate. We always do.
I must know you from somewhere. A random stranger wouldn't spend so much time obsessing and being jealous over my medicore success post.
Based on your green nickname, you probably even registered just to come comment on my post. I advice you to stop wasting time on such activities.