I don't know, compared to, say, switching sides so you can park a CV right in front of your regular side's shore battery and not let anyone move it until it's sunk, it seems like pretty inoffensive behavior to me.
The principles only some folks seem to get here are that a CV, unlike a plane, is both a strategic objective AND an asset, it's a more valuable and vulnerable asset than any land base, and it's not freely expendable like planes are. CVs don't tend to last long in combat, so beyond any considerations of winning the war, hiding a CV for which you don't have the port, or at least keeping it a few sectors out, means denying its use to the enemy. Sail it right up to an enemy field and you're just giving that valuable asset to the enemy, and then you won't be able to use it any more than if it were 6 sectors back. Between having the CV and not using it, and not having the CV and having the enemy use it against you, the former is obviously preferable.
And a lot of the reason people move them back so far, as opposed to just far enough to be reasonably safe, is that they've learned that that's the only way to keep some newbie from sailing it right up to an enemy field with SB and ords intact - with the CV in the rear, hopefully someone will notice and change its course before the newbie gets it all the way there.
The real mystery here is why guys like whiteman, 68ZooM, druski85, and stephen ("I haz mad sk1llz and a capslock!!!!") are incapable of making a point other than by pre-emptively insulting anyone who might disagree with them. What are you guys, 15 years old? News flash, guys: intelligent people are capable of holding different opinions - even (occasionally) ones different from yours. You're the ones making yourselves look like "IGNORANT retsrds".