Please explain why it would be a bad idea to submit the form if you intentionally created the unsafe situation. In specific how filing the form makes your situation worse then if you don't file it.
Well, I think that intentionally creating an unsafe situation is probably a crime, and you're not suppose to use the form to report crimes.
But on the other hand you won't get into trouble for anything you submit to NASA, they won't turn you in.
Let's suppose you are operating a jet plane using the callsign 'Ghost Rider'. You call JFK tower and ask to do a high speed tower fly-by.
JFK Tower replies "Negative Ghost Rider, the pattern is closed". But you go ahead and do the high speed pass anyway, intentionally creating an unsafe situation.
You decide to file a NASA report. On the description line, the line that the FAA does see, you write "Intentional disregard of ATC instruction".
You won't get in trouble for admiting to the fly by in the text of the NASA form. NASA won't burn you.
On the other hand, in this case you're probably not going to get out jail free, report or no report. But heck, give it try!
Now when the FAA calls you in demanding your butt you can slap the NASA tear off on the table and laugh at them, saying "here's my get out of jail card suckers!" and just start laughing at them. Good luck with that.
Kidding aside, one thing that I think has the Russian confused is that you do want to be careful about what you write on the tear off part of the NASA form, the part that you show to the FAA. It's better to not confess to a violation in the description at the top of the form. For example, if you are reporting an altitude bust you might consider putting "question about assigned altitude" rather than "leveled off at wrong altitude".
You'd really rather have no certificate action on your record rather than an action with punishment waived due to the NASA form. The FAA will see the tear off before they make the final decision to pursue formal certificate action. There is no point in turning in a written confession of a crime to them as part of this process.
If the FAA can convince the judge that the violation was intentional then you don't get out of jail free, and the NASA report just added gas to the fire.
ETA: Avbug is correct, it's very possible that your tower fly-by was a violation of blackletter federal law. If you break federal law then your friendly neighborhood U.S. District Attorney won't be impressed at all by your NASA form.