If some people want the option to play without vacations, that option is already available. It's called live chess. You can finish your game in minutes, not months or years.
When you play "correspondence chess" or the internet version of same, it is NORMAL for people to take time off for work, vacation, or whatever obligation. You cannot expect someone to be at their computer day and night, for weeks or months at a time. You're not being reasonable.
You accept (or issue) a challenge for a particular time control, you know that each player (not just you) is entitled to take vacation. Read the rules. If you can't stand to wait several days for each move, you could take on more games or better yet try live chess. Perhaps correspondence chess time controls are not for you.
Some people have a life outside of chess. Sorry if you don't.
Ah, Senior - I see you're back with all your snide comments and fear intact. Don't ever lose it man, it's you.
Fezzik: Do you want to ban legitimate uses of extended vacation time as well? I've been on the wrong side of vacation abuse many times, but I've also been out of the country for 2+ weeks and having the option to pause my games on this site was invaluable.
I travel, although not as extensively as shoop2. I like the vacation option as it is, and I don't begruge others who use it.