Basiclly, if your post isn't above 25 characters, you shouldn't be posting in the first place, that's the lowest of low quality posting. Its not hard to elaborate your post to make it longer than 25 characters, and if you can't, maybe theres something wrong in the ol' noggin'.
I know it's not a big thing to some members, but it annoys me and I'm sure many other members too, I think I red somewhere that it isn't aloud, but managment or staff arn't doing anything about it so I've seen.
If you don't find it annoying, that's your opinion, personaly, I do.