Hope I never go on a really good run of form then....
Avoiding using computer machine to defeat the human opponent

Even with your good run of form..would 50percent of your moves in your games be similar to a super-computer!

Not mine, but there are some very good players on here who are more than capable of playing at that standard. Apologies for being pedantic but he's not syaing the cheats use super computers, he's suggesting Chess.com servers are super computers!
I'm afraid it's just a risk that you have to live with when playing on line. There are cheats out there! However, I like to think that the honest players far out weigh the cheats.
Chess.com do have some methods of identifying and analysing potential cheats so if you suspect someone you should report them..

If you suspect someone, please use the Help link at the bottom of the page. When that page opens, click on the left side option where it says Contact Us and submit a 'Suspected Cheat' ticket.
Also see this page
http://www.chess.com/forum/view/community/chesscom-policy-on-cheating
We provide tools to report cheating to our staff. But having several constant and redundant threads on the topic that circulate with the same questions and comments over and over again isn't helpful, and instead causes people to worry more than they need to. If you want to discuss cheating, please do it in this group
http://www.chess.com/groups/home/cheating-forum
As far as I see, currently, a user can give the board(and it's piece's positions) to a computer outside of this site to get help from that computer's analysis to defeat his/her human opponent!
If it's true, I suggest this solution. Your super-computers must analyze the user moves for finding if they have a pattern like a well-known algorithm's pattern. Then for example, if the user's moves were up to 50% like machine's moves for 10 finished games, then the web site will set him/her as loser in that games as his/her punishment!
Getting help from another person rather than computer to defeat human opponent does not have and need a solution because it almost takes place with small probability!