[justapassenger]

Let's apply occam's razor.

What's more likely?

1. You mentioned thousands of other things in your private conversations. They suddenly start to narrow down on one specific one. 2. You're interested in photography, and are using service made to share photos. You follow photography accounts/search on the internet for photography related content, this signal got picked up, you clicked on some ad (by mistake most likely), and signal got amplified.

[alpha_squared]

To address your breakdown:

1. I distinctly hadn't mentioned photography in private or public messages. Ever. Nor had I tagged any of my camera equipment in any of my posts. Hard to believe, I know, but I created and manage the account with explicit intent and action, preferring to move personal conversations off-platform.

2. I don't follow photographers, and prefer to only follow certain friends. While I don't go to that great an extent of concealing my browsing history, I also make some effort to segregate information flow. Plus, the low-hanging fruit of Firefox + DuckDuckGo + uBlock usually does a decent job of helping with that.

3. In the two years I've had an account, I hadn't seen a single photography-related ad prior to the conversation on photography. Ads typically revolved around random tech products (many of which were irrelevant) and ads for TikTok (zero interest in it).

4. There was a dramatic shift in the content of ads within 24 hours of the conversation on photography. It's conservative to estimate 75% of ads are photo-related. I have a hard time remembering any other ad (a sign of their irrelevancy, in my opinion).

5. Given the demographics of this site, I'd appreciate (for myself and others) if you'd give at least a little bit of benefit of doubt on technical comprehension.

[drdebug]

If you are interested, you should know that it's possible to not be seeing any ads at all on a computer (phones are a different beast). It's a bit of a chore but it takes 3 things: firefox with ublock origin + noscript + delete cookies and history on exit. I haven't seen ads in years. You can go a step further and create startup profiles. It's a bit chore because you have to selectively allow domains for content to display (reader mode can help), but that's the price to pay to minimize tracking and remove annoying ads.

[alpha_squared]

Thanks! I rarely see ads on desktop because I use Firefox + ublock + Pi Hole. I do, unfortunately, have to whitelist the occasional domain because some sites that I need to access don't play well with that setup.

[kindle-dev]

What’s more likely? A service that vacuums up every piece of data vacuuming up microphone data, or the same service intentionally excluding this one random piece of data? Every time this comes up, people jump up and say “they’re definitely not listening!” But why do people think that? Facebook gathers as much data as possible, including buying a VPN to inspect supposedly private traffic. Why wouldn’t they listen to a microphone? As an anecdote, I know someone who worked on smart TVs. Part of what they implemented was a system to turn on the tv’s microphone to get an audio fingerprint of the content being watched.