No, that would be a waste of time, since it's extremely time-consuming to create new accounts to acquire new characters, and then raise them with affection until their scenes are unlocked.
If you want to go through that kind of tedium, then go ahead (it may be helpful if someone misses x character), but it'll be way less work to just wait until the inevitable service discontinuation announcement so that everyone, particularly those in the Japanese community, feel inclined to pool together all of the assets and share them.
Japanese players think they're trying to stretch the service of this game until it passes the point where they have to refund players their points (i.e. if a game ends their service within 3 months, they have to give a full refund, but games that last for a half year or something can keep all of the points people spent on it). So you may not have to wait too long.