That SendAddonMessage()-stuff is really annoying. AFAIK, an addon cannot specifically retrieve only part of the spam? :/
Because what we need is as way so that the incoming spam doesn't have to run through the 80+ addons I might be running, but only goes into those which specifically asked for the specific message's prefix.
AceComm is the only way to do this at the moment. If 10 addons register to AceComm, only AceComm (and not the 10 addons) specifically listens to all the traffic and parses out each one to send to the appropriate addon.
i.e AceComm is the "centralised" location which should have been in the default WoW implementation in the first place.