This is what an illegal meme looks like: "Tyler Kay, 26, wrote a post... calling for hotels housing asylum seekers to be set alight. He responded to several comments posted by others following his post, adding that it was “100% the plan”.
Kay also reposted... another message inciting action against a named immigration solicitors in Northampton" https://www.cps.gov.uk/cps/news/man-jailed-just-two-days-aft...
I think we are stretching the definition of a meme here. This was original content orchestrating attacks. Not some repost of a joke (however bad taste it might be).
At which point is the boundary between meme and instigator?
I'm pretty sure that's the point they're getting at - that the original person commenting was talking about this stuff like it's just memes, in bad faith.