Just an idea which probably won't be implanted.
Like Button
Dislike Button
Report as Spam on a topic or post which would be sent to an admin/moderators inbox or something.
Delete Message in inbox
Friends List
General Guide Category, where you put guides that don't match EOSERV, Seose, Client Editing etc. instead of putting in lounge.
Request Category, where you can ask for others to do something, may not be necessary because some may spam it with stupid things they want.
Profile Pictures
Profile Announcements/Status's , so you can post on your profile with an announcement or your status.
More profile questions, like which country you live in. What's your servers name.
Once started a post or topic & you click a link then a message should pop up saying, are you sure you want to leave this page?
For the like & dislike button, it would show in the stats for your user how many posts that you made that were liked & disliked, and a top rated reply for the most likes in the whole topic.
Non-forum Ideas
In later revisions including a stable EO+ Quest system.
SLN Updates!
Also! One of my ideas that I think is cool, the ability to rate servers on the SLN. That would be based on a percentage. So people can rate it a "Good" or "Bad".
Server Info, where there is a link beside the server or something with a info page about the server, which only the owner can edit/make. Which would probably require a bit of work. For example only the person with the IP of that server can edit that info page. Also with a comment box on the
infopage.
For the SLN Updates mentioned above, maybe people could only do them if they were signed up for the SLN? Possibly using a SLN Account, or using the forum account.
Edit: I am not sure if I put this in the right category sorry.
