"Access Denied - Security Block"

Not sure what causes this. I thought it was certain trigger words, but it's more than that. Yesterday, I got that message when replying to a post with a complete quote of the original to which I was replying. I deleted the quoted text, and the reply posted successfully. Clearly, the original post went up, yet something in that same text caused a problem with my reply?
 
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I thought it was because I was trying to post multiple images. The only content of the posts that received that message was the BBCode that flickr produces for sharing shots. I tried to put 3 images in one post, when I pared it down to one it went through.
 
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I've read somewhere that its a issue in SMF. I send a e-mail to Craig about it sometime back, but he was planning to replace SMF anyway. Thats why you should point out issues like this to him, he is the only one who can fix a issue with the SMF installation.
 
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It's happening to me again in the above linked thread when I try to post any of the following images from flickr whether alone or as a group:

sigh... it's doing the same thing here when I try and post the content using code tags. The three images I am trying to post are the following:

http://www.flickr.com/photos/christopherbrian/5928599052/#in/photostream/
http://www.flickr.com/photos/christopherbrian/5928665680/#in/photostream/
http://www.flickr.com/photos/christopherbrian/5928791190/#in/photostream/

I'm using the very same method to post those as I am with other images that are working.

I see that others are experiencing this as well. My issue appears to be the same, perhaps a thread merge?
 
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Brock said:
I'm getting the same message when I tried to reply to a EOS Bodies 70D rumor thread

http://www.canonrumors.com/forum/index.php?topic=12537.60

So I tried just posting

TEST

and it worked.

I'd post my post here, but I get the same error when I add it.

Never mind, I figured out what was tripping it up. The word c-sino

Thhere are no settings in the SMF forum controls that block the word, but it could be our host host blocking it. We do have a banned word list, but only 4 words are on it, and they just replace some letters with underlines.
 
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Sorry, that's not it - today from 7 posts 5 were blocked until I removed huge parts of it. There has to be some heuristic component, and this is getting ultra-annoying since the whole message is lost when going back.

And if something has been blocked (maybe the filters remembers the ip address) it seems to get worse - I had to re-edit this post about 10 times to be able to send it! This nearly makes CR unusable for me.
 
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