My current version of Discourse is v2.1.0.beta2 +382, which is said to be the latest version on the dashboard.
I do have an adblocker on, so this may sound reasonable. However, after reposting it several times of the same content, it stopped with the error. I’ll try to avoid the word “Advertising” in the future.
edit
I managed to figure it out. If there are no preceding words from “Advertising” then the adblocker kicks in. However, if you use alternate forms such as Advertisement or have preceding words, the adblocker will not kick in.
