This is sad. I want to add everyone but I'm afraid too so I just added Apdude....
The best practice I've discovered is to just add everyone as they are added to the front page and then message them that you did it. Most times, people reply and add you. At least in this way you can keep track of all those you've notified so when after a given amount of time, you can delete those who haven't replied to you so your list is uncluttered with missing Miis.
Of course it's easier for me to keep my list updated with new arrivals because I edit this thread, but you can subscribe to it. Also, the only thing that sucks about adding everyone is the initial work you have to put into it
now (adding codes, names and then notifying them through pm's, etc.), but it will pay off once your list starts to populate with the best Nintendo community on the net! Plus the list is only going to get bigger and since you aren't selective of who you add (like myself
) you should probably get cracking now
.