First of all, you made the assertion so it is up to you to support it. So you are the one being lazy and ignorant.
Second, barotrauma refers to injury sustained from failure to equalize the pressure of an air-containing space with that of the surrounding environment. The most common examples of barotrauma occur in air travel and scuba diving. Unless you're doing the valsalva maneuver during a deep sea dive I don't believe it can cause that type of pressure required to cause tinnitus and actually the valsalva maneuver has been known to help alleviate certain types of tinnitus. See
http://www.aafp.org/afp/2004/0101/p120.html ("The symptoms may disappear with Valsalva's maneuver or when the patient lies down with the head in a dependent position").
Try backing up your claims with respected authority. People come here for truth not a bunch of random, made-up nonsense.
I don't understand why you're so worked up over this.
The valsalva maneuver is indeed safe for most people, and commonly performed for a range of exercises and activities to help equalize pressure in the ears,
but that doesn't mean it can't cause tinnitus or damage your hearing.
You're actively forcing air through your nose while you have them blocked, you don't think it's possible that someone could force too much air and have something go wrong? Or better yet, already have a pre-exisiting condition like ETD and have that interfere? A bunch of people have their hearing messed up when traveling by air with a cold (blocked nose against pressure change), and I've seen other members on here have to discontinue HBOT treatment because it was causing more harm than good - not saying the treatment is inherently dangerous, but I'm pointing out that you can't really claim that extreme pressure changes can't mess with your hearing.
There's no one size fits all when it comes to this stuff. So, for you to say that we're just making stuff up is ignorant.
I had mild tinnitus starting 2012, and was dealing with it fine for about a year. Always felt that my ears were stuffy (common with tinnitus sufferers) and got into the habit of equalizing my ears when they didn't feel quite right. One day I perform a valsalva maneuver and instantly I felt something go wrong in my left ear, it popped weird and my tinnitus went from 3/10 in my left ear to 20/10 for about 8 hours along with an insane amount of pain. For the next year and a half my left ear was messed up: significant tinnitus increase, severe hyperacusis and TTTS symptoms.
Reason I advise against it to most members is that it's totally unnecessary in 99% of cases. Most of us suffering from tinnitus or hyperacusis have the feeling of fullness in our ears. Performing the valsalva maneuver will
at best only provide temporary relief. There are also much safer alternatives to equalizing pressure.
So yeah, lose the attitude. We're all here to help each other and share our personal experiences.