I've been wanting to start this for some time, so now I will. I have "tinnitus".
http://en.wikipedia.org/wiki/Tinnitus There is no cure.
There was a thread some time ago about the noise nazis. I think it had to do with local legislation against loud pipes. Now I'm about as "let it be" as anybody can be, but it is mis informed to chastise these people for their positions.
Tinnitus is a constant ringing in the ears. The most common cause is exposure to loud noises. Usually long term, but not necessarily. It can come from short term exposure, and once initiated often never goes away. Do you want it on your conscious that you did this to someone else? I have in-laws in Ormond/Daytona Beach and during speed week, they are in their condo on A1A with constant LOUD noise, all day long, day after day. As elderly people, it doesn't take much to potentially damage them forever.
For me a tone about 10 keys down from the top of a 80 key piano, just hit that note and hold it. Forever. Never wavers, pulses, diminishes, ever.
In my case I think the CAUSE started as a teen when I operated lawn mowing equipment, often for 8 or more hours a day, day after day, back when there was no concern given for ear protection. Add to that 100,000+ miles of motorcycle operations and I've got a nasty case of tinnitus. Even though I always wore a helmet, there was constant buffeting and wind noise.
But the ringing didn't start till later. That's often the case. The damage is done over time, the symptom comes later. Then you say, oops, I should've taken better care. And it is irreversible. The doctors don't even really know what the damage is. But the ringing is real.
Now, since 1992 or so, I ALWAYS insert ear plugs before riding. And as much as I love an engines rumble I resist it when others are around, which is virtually always. But the best i can hope for is that it doesn't get worse.
Tinnitus is not life threatening. Many of you have life threatening illnesses, I'm not trying to compare this to that. While it often accompanies hearing losses, I can actually hear quite well. Thankfully. Its just that whatefever I hear, it goes along with the ringing.
But as a quality of life issue, it really sucks. I walk out on my patio, in the dead of night, expecting to hear the sounds of silence, and instead its the ringing. And its there, all day long. I just have every radio in the house on to cover it up. That's actually one of the recommended therapies, introduce white noise into your environment to cover it up. I often wondered, as did my wife, why i always had the radios and TVs on. After studying up on it I understand, a sub-conscious strategy for relief.
All I'm saying is, enjoy your loud pipes, occasionally, have a true knowledge of what you're doing to yourself and to people in your surroundings, ALWAYS wear ear protection. Even with mufflers, wind buffeting is hazardous.
We are indestructible as youth, but post 30 is becoming a longer and longer time. I expect to be on this planet another 20 to 30 years, maybe more.
Me and my ringing.