Depending on the relative direction of the light and “camera”, the click point could vary. It wouldn’t be on the tip of the shadow unless the shadow was already directly below the tip of the pointer in line with the line of sight. More likely it would fall somewhere “between” the apparent position of shadow and pointer before clicking.

Only use the /all feed (top 6 hours) , block what you don’t like.

I don’t read it like a quote. She’s telling John an opinion (sarcastically) and then letting him know the activists will inform him the same thing. It’s not grammatically incorrect, just difficult to parse (which is still not the best writing).

Either way but usually the former