I think Welcome Message is really better than MOTD. Here are the reasons: Who will change the MOTD every day? Who will read the new MOTDs every day? I think most of servers will have also website with actual events and changelogs
Well that's why one of the ideas was to allow the MOTD to also have web browser support so that kind of stuff could be linked to. The actual "Message Of The Day" thing is just a very old existing feature, hence the name being kept. Theoretically, we could also allow the use of screen textdraws built into GTA to display a welcome message via scripts. It's just a matter of figuring out how to do it in both GTA III and GTA:VC in MTA 0.x.