Honestly, I thought they'd help illustrate the ideas. But maybe not! Thanks for the feedback :)
The balloon one is a bit busy and I didn't find it to have much explanatory value in that context.
Update: also made them smaller.
Edit: Aside from that, as a Rust neophyte I did like the content.
I personally appreciate the content, so thanks for that!
Yes, bike shedding. People love to bring that up as a way to deflect criticism they disagree with.
Is it that you used a child sharing their toy as a way to explain the concept, and you needed to remind us what a toy was?
They are also somewhat inconsistent as to where they appear.
You can remove all but one or two, and the article won't be any worse :)