I noticed that trying to use the work " u h t t p d " without spaces causes the post to fail SPAM check as it is detected as a link (which it is not).
this word is commonly used to reference the LuCl service name in OpenWRT which really is a bummer
Please see if you can tweak your link detection Regex (or send me what you have and I'll gladly fix it for you).
Best wishes,
newgeo