When British people write X after everything, are they being serious or trying not to be awkward?

I used to put xxx at the end of my statuses on Facebook. Then to be polite to my American associates...
I used to put xxx at the end of my statuses on Facebook. Then to be polite to my American associates...
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I don’t think any of that is okay. In the event animals are to be killed, for food or safety, I beli...
Fun example: I went to college in the 1970s Wow, girls were super hot I retired from the Army in 200...
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A foul smell and wetness without other symptoms could be due to sweat, urine leakage, or an underlyi...