The problem with channel 200 is that most people don't use it. This doesn't mean they don't want to talk, however.
For example, the other day I had an interesting, inconclusive dogfight which lasted 15 minutes. Since neither of us died, I had no easy way to ID my opponent, even though I wanted to exchange observations after I landed. I eventually tracked the guy down by:
1) Guessing his country by looking at ownership of nearby bases.
2) Going on channel 200 and asking if anyone was on from that country.
3) When someone on channel 200 finally replied in the affirmative, I described the situation, which took some time, and requested the person go on that country's channel and inquire as to the ID of my opponent. They kindly agreed to do this.
4) I was later informed of the likely ID of my opponent, and guessing at the spelling, typed his ID into the radio and was able to contact him.
5) Even though my opponent hadn't tuned into channel 200, it turned out that they were still willing to exchange friendly comments on the recent fight.
Note how complicated this all was. Had channel 1 still been operational, I would have been able to inquire directly, and would have gotten an answer immediately, not 15 minutes later after I landed.
Get the picture??? :-)