My Issue With Tournament Age Divisions in Online Tournaments

This is a bit of an odd place to start, but since the entry period for the 2014 June International Challenge started yesterday, I feel that it is relevant enough to talk about. Online tournament registration for Pokémon works sort of like this:

1. Go onto the Pokémon Global Link (PGL). If there is a tournament running, and the entry period has started, you can sign up.
2. Navigate through the pages until you find the master page that allows you to sign up. Make sure that you've signed into your account by this point.
3. Make sure to accept the Terms & Conditions, press the "Enter" button, and you're into the tournament.

It sounds simple enough, except when you consider age division. Tournament participants are ranked into the Junior, Senior, or Master category based upon their age...upon the year they have entered as a part of their birth-date when they sign up for the service that connects to the PGL (the Trainer Club). This presents a few issues:
- Someone could lie about their birth-year. That's sort of unlikely, but still possible.
- Ranking people based upon birth-year isn't exactly fair. There could be Juniors players who have been battling for years, and Masters players who are just starting out. As such, they will either be completely destroyed in the online competitive battle, or have an unfair advantage.
- Seniors may unexpectedly be moved into Masters (as I have yet to find evidence as to on which date the tiers change, though by a hunch I would say on December 31st/January 1st of each year), and Juniors to Seniors. Again, they may not be ready.
- Pokémon eugenics (which I'll talk about later; it sounds frightening, and it is), which is still legal, can very easily happen in all three tiers; not just Masters. (Masters may be most well-known for practicing it, but that is only because of the demographic of Masters; those in Masters are at least 15 years of age, and can better understand eugenics than someone just starting out, simply because they are more likely to have had more experience with Pokémon in the past.)
- Rage-quitting. Playing in Seniors in 2013 was...hard, simply because of the number of harsh exits from the battle. The organizers have set up many different policies in terms of these exits, trying to keep them from happening, but it just isn't (or wasn't) enough. Please, go and click on "Run" and forfeit the match! You're actually doing yourself more good by not attracting the attention of the organizers (particularly if you do it over and over again), and you're benefiting your opponent. Your opponent may have worked hard to defeat you; give them the credit that they deserve, please.

Anyway, it seems odd for me to start with an opinion piece, but that's what I think of age division in online tourneys. I understand why the system exists, but I feel that it still needs to be improved upon.