Anyone notice how much a user on the Dream World looks like n00b when they send their legendary to it? I find it kinda amateur-ish.
Once you've sent all of one kind of berry to Entralink, can you still swap berries to get the same kind of berry that you sent to Entralink? Or is it… "memorized" by the account and you can't get another of the berry cuz you've already had it before, though you sent that berry's population to your game?
I wouldn't say so much being a n00b as just wanting to see how their avatars look in the Dream World. Everyone has their preference, and what Pokemon you send has no real effect on game play. I have sent over a dozen Pokemon, legendary and not, over to the DW just to see their artist rendering there, and in the case of some legendaries (or Wailord), they don't even fit in the front room of your house. Their avatars are just too big, and you have to move to the right side of the room to see them.
Rather interesting to start off a post commenting on someone being a n00b, and then follow up with a question that is easy to answer in your own Dream World game play... but I pride myself on being polite and have your answer. Berries, or any item for that matter, once they have disappeared completely from your inventory, you can go back to swapping as often as you want. It's beneficial in a few cases, so if you're short on health items or PokeBalls, then you can keep sending them to the Entralink and snagging more from share shelves (of course, you can get only one of each per visit, and just be kind and leave behind something nicer than an Oran berry). If you are like me and ran into two people at the same time who just happened to be sharing a Lum berry I hadn't been able to find after a month of play time, then you might have done what I did. I swapped for one berry, planted it, and then went back to the other house for the second one and planted it as well. From no Lum berries to 10 in just two days of standard grow time. This concept works if you plant a lone berry from your inventory or put it on your own share shelf because your inventory says you don't have any on hand, but it does not work with items waiting to be sent to Entralink during your session.