Well mIRC is developed in Britain so the FBI have no authority over it whatsoever. Even if any kind of 'chat tracking' was put into a client as high profile as mIRC without being explicitly stated that it contained such 'features' I'm almost certain beyond any doubt that it would breach some form of law and would leave mIRC Co. Ltd. wide open for lawsuits. Fortunately in Britain the government isn't quite so far ahead in it's ability to circumvent all basic privacy rights in the War Against Terrorâ„¢.
You articulate a stunning level of naiveté.
If you are poisoned by a tampered with bottle of aspirin you can find an attorney who will take your case (or your widow's case) and who will be able to find a court where a judge will hear it because the judge and his fellow members of the court, and police, and the federal and secret police, don't want to be poisoned or their families poisoned.
However, when a federal or secret police agency gets caught with their pants down, or a client of said agency does, you may succeed for a short time in getting an attorney to proceed with your case.
But...once the attorney is taken into the judge's chambers to meet with a high level officer of the fed/secret police and understands that this is a "
matter of national security " your attorney will either tell you this (unlikely) or deceive you into believing that the case can't proceed because as "raccoon" stated in his lucid post "it was due to an error".
Remember, "9-11" and "al qaeda" are used to justify every sort of surveillance on the internet. The courts have never stood down such requests and almost every member of the national security state in every western nation is appalled at the level of anonymity possible in internet communications.
Just twenty years ago you could expect to have an FBI or even CIA file opened on you in the states for writing and receiving too many letters to foreign nations. Now you can talk in real time with people all over the world.
The governments of the west are in a state of abject fear which they are desperately trying to hide.
Given their ruthlessness and lethal ability to act you should be very concerned about such security matters and assume that anyone who starts screaming in a forum about "tinfoil hats" is an operative of such an entity concerned about a lucid post which reveals too much. You won't always be right about that assumption because of the copy cat nature of such posts, but more often than not you will. If challenged such a poster will attempt to defend itself by pointing out that it is a "long time member here" as if that disproved the suspicion.
I'm sure that the FBI, MI5, MI6, CIA and other lesser known (to me) police agencies have agents employed to monitor dozens of forums each day and to create personalities there which allow them to influence and even control discussions.
That's a big part of high level police and intelligence work.
Surely you have read reports about police posing as children? Why would you imagine that they limit such deceptive practices to pursuit of child molesters?