Too Small of a Post

annoys the hell outa me, i wanna reply to a post by saying " thanks" or “yourwelcome” or if i find somehting funny ide like to just say “lol” or " u made a funny just now" but then i get warning that says my post is too small or it has too little characters or soemthing like that. so my defence to that is to slap on a few dots (…) it works, but its a pain in zee ass not sure why we have it have a limit on characters. ok thats all form me today. thanks