https://www.forbes.com/sites/paularmstrongtech/2018/09/16/lumen-is-tinder-for-seniors-and-it-just-launched/
Bumble is backed by Badoo (80%, majority-owned by Badoo)
It is said Badoo is related to Russian mafia of white hat hackers in the spyware business.
Badoo is in big war with Tinder (Match Group)
Perhaps it is only a revenge against Match Group! No more than that.
http://onlinedatingsoundbarrier.blogspot.com.ar/2017/11/bumble-backed-by-badoo-perhaps-it-is.html
about article: In Tinder vs. Bumble, a Texas Showdown Takes Shape
https://onlinedatingsoundbarrier.blogspot.com/2018/07/about-article-in-tinder-vs-bumble-texas.html