I'm not saying _nobody_ uses those devices, I'm just saying they're sufficiently old that saying _my app supports Android 3.x_ is moot, because the usage on that API will be near 0 anyway, so you never really know if you _support_ that version outside of any testing that you might be doing. Android 4 and lower have estimated share of 0.3%-0.7% depending on a source ([1], [2]). Of course HN users will be more likely to have those devices too. And then of 0.5% users that maybe will install the app some will have no issues, some will have issues but not notice, some will notice but not bother reporting.