1. When there are less than ~20 people in the realm, an event notifier can be very useful as they might take time to get to the event. With a lucky spawn you can hop on a warrior/trickster and get there first. This helped me multiple times
2. All realms have the same objectID iirc. You can reconnect to a random one (I know it's possible I dunno how it is done, you can check because both 059 and cc have that in their client) but connecting to a certain one is only possible if you visited it lately. I think the specific ID to the realm is reset when there's a server reset, and so you can't always connect. You need after each server reset to connect once to fetch the ID. I'm not 100% positive about this, @059, @CrazyJani and KillerBeKilled probably knows the most about all this.
3. Can't send you pm, link is btUWGbt