* Chips need a power source. If it was easy to find one inside the human body, we wouldn't have so much hassle replacing batteries in heart pacemakers and other implants.
* Sending/receiving radio waves requires antennae of certain physical sizes. Something that can go through a needle wouldn't really make it.
Making these arguments is harder than pressing the "flag" button, but that's the only way of actually reducing the division in our society rather than furthering it.
* They are trolling/being sarcastic
* They are testing you for loyalty
* They are showing loyalty to someone else
* They truly believe it (many people really do)
If your entire context is a single post in the frustrated ex-innovators' community (pun intended), you just can't tell anymore.