403 Forbidden returned when posting the following paragraph

[davidktw]

Dear Mod,

Can you kindly explain why posting the following paragraph will result in a 403 ?

Thanks

 

[davidktw]

I love the *contradiction* when someone think the word is "shut-down"


Actually to my knowledge as I have tested it, it is not based on just keyword alone. It's either some multi keywords sequences or some kind of calculation used. (not exactly sure yet)

 

[davidktw]

For example in AWS, the Relational Database

 

[davidktw]

The above is as far as I could go. There should be a space right after the last "e". Adding the space is fine until I add the "(" bracket which will result in 403 ? That's some strange web application firewall someone could be using

 

[i spent $10 plus sia...]

I also kena this error when I tried to report an offending post on edmw