These are all good points. For the last one, there is a separate study by Pew Research Center conducted in 2022 (reported in 2023), which likely reduces this bi

These are all good points. For the last one, there is a separate study by Pew Research Center conducted in 2022 (reported in 2023), which likely reduces this bias by recruiting respondents by sending physical mail "to a stratified, random sample of households" that invites them to complete an online survey: https://www.pewresearch.org/short-reads/2023/02/02/key-findings-about-online-dating-in-the-u-s/ https://www.pewresearch.org/short-reads/2023/02/02/key-findi... Pew's results were different than the findings by Rosenfeld et al.: while 53% of people aged 18–29 in the US "have ever used a dating site or app," only 20% of partnered people aged 18–29 reportedly met their current partner "on a dating site or app" (I've also made a similar comment elsewhere in this discussion).