I've just seen this posted by someone working with XR, don't suppose it will convince the sceptics but here it is anyway:
Saw some fake news about the litter left by XR activists. Quite the opposite in fact! We are separating and recycling, no rubbish left by us at all.
The litter seen in Hyde Park was the result of the 420 Festival last Saturday 20 April when tens of thousands of people descended on Hyde Park armed with booze, weed, and picnics ... which they left behind. I know because I was there talking to some people, raising awareness of the International Rebellion. The 420 ravers wandered into the XR area at Marble Arch and brought their booze etc with them. It was what it was.
All the XR sites are booze and drug free zones and are carefully and thoughtfully managed. We DO NOT litter, nor do we engage in verbal or physical violence.