I know that this is kind of creepy in the "being spied sense", but I kind of love how, after searching/buying any maker adjacent thing (e.g. 3d printer filament, smart home devices...), ad networks start treating me like the coolest guy ever.

I buy a couple of small things and immediately start getting ads like:

• "Buy this CNC mill!"
• "What you need is a laser engraver. Perfect for all your projects!"
• "Replace your soldering iron with our fully featured soldering kit!"
• "Look at this pocket radiation detector/spectrometer!"
• "Call us to print your PCBs!"

As if I had a huge workshop and my latest "big project" wasn't "adding a switch to a LED strip".