I know I've made a request like this before (on bukkit maybe?) but with the new multi line help messages that have been rolled out and weird handling of command screw ups, I see this as needed as ever. A lot of the messages can be confusing to players or just need some minor tweaking (wording or colors) and could be enhanced by using the chat api included in Spigot to include hover, suggest, ect. events on messages. This probably isn't a concerning issue of your's to add right now with all the other features to be added and would be tedious. I just want to see what you think. If this isn't something you want to spend time on I'll take it up implementing it.

I do have better command help mostly finished on the dev branch (tab completion, better help messages, etc).

If there are any specific error messages you think are confusing that are not the generic "you didn't type the full command" and "you don't have permission" messages, post them here and I'll fix them.

Players are always getting messages like "no help is available" when they type a command wrong. I'm guessing this is something you fixed though.

Alright I'll wait to check out the formatting of it. Are you using hover events at all or suggestions?

Could you give me a specific command that prints "no help is available"? I don't think any of the commands should be doing that.

/te add (player/plot) produces this for me.
/(town/te/plot) active

Version: 2.5 snapshot 6935942351ce567038219128db9a5ce453311c5 (think i typed that right)

Might be because I'm just outdated.