Currently, TA's profanity filters are based on North American English. As a result, there are some words that are highly offensive in UK English (and one that's very offensive in Canadian English) that are not being detected in forum posts, reviews, and TripAdvisor Traveller Articles.
This is a list (slightly outdated) of the most offensive words in the UK. At the moment, 4, 8, and 10 are apparently not flagged by the profanity filter. Can TA please add them? (If you don't wish to read a list of offensive words, don't click on the link.)
There may be similarly words from NZ & Australian English that are going undetected. Perhaps TA members from there could supply a similar link?