Rules of S&I
Users are encouraged to post suggestions within certain parameters. These parameters are commonly known as the What Not to Suggest (WNTS) rules. Most of the parameters listed within the What Not to Suggest rules include suggestions that either will not be implemented into future features, such as getting rid of Builder's Club or adding an AFK system within all games, or suggestions that are frequently posted and have been acknowledged by the administrators, such as adding voice chat and pets to the game. Sadly, very few posters have actually read WNTS, which results in the posting of several redundant threads.
In addition, all users are expected to follow ROBLOX's general forum rules and to be respectful to all users within the forum.
Making a suggestion
A thread has been posted on S&I discussing how to make a good suggestion thread. Though users are not reprimanded for not following this thread, users are encouraged to read and follow some of the suggestions posted within the thread. It is also encouraged that users are open to feedback and criticism when suggesting an idea.
Find some actually decent ideas on the forums? Post them here!
- Listing the words that are disallowed on a forum post you made after pressing "post" and the suggestion of drafts. 
- Removing previous usernames off your profile. 
Commonly posted suggestions not on WNTS
- Unfriend banned players
- Bring back tickets
- Make ROBLOX pay to play
- Anti-NBC rants
- Voice chat
- Ban OD'ers
- Delete inactive accounts
- Studio on mobile
- Ban violent games
- Some believe that the time when the load of trolls came on to Suggestions and Ideas was in the beginning of 2015.
- The Sub-forum is commonly abbreviated as S&I.
- ↑ http://www.roblox.com/Forum/ShowForum.aspx?ForumID=21
- ↑ http://www.roblox.com/Forum/ShowPost.aspx?PostID=70099801
- ↑ http://www.roblox.com/Forum/ShowPost.aspx?PostID=80622076
- ↑ http://www.roblox.com/Forum/ShowPost.aspx?PostID=73566197
- ↑ https://forum.roblox.com/Forum/ShowPost.aspx?PostID=198389983
- ↑ https://forum.roblox.com/Forum/ShowPost.aspx?PostID=159841312