hey guys aranea here to ruin the joke

See, when sending a memechat to somebody, it doesn't say who sent the message in the memechat user list.
OP could have very easily sent the message shown in the image to Donald, then screenshotted it to frame Donald as the person who sent it.

He's a site mod how tf do you plan to ban a site mod...

no u can’t I think he’s a site mod

Use the power of friendship

HOW DO YOU GET A CUSTOM THEME

Erm that's a filter

I put the screenshot under an Instagram filter