“friend of a friend” (foaf is the official term) style social networking can be addictive.
i don’t think you need be concerned.
its “friend collecting” and as you go more degrees away, the more interesting people get as they are less and less in common with the source.
its a fascinating data science and a lot of fun to participate in as one learns a lot about how similarities and difference converge and diverge among local to global neighborhoods.
its very “web 2.0″ behavior. i loved it and i still do it but not as much and i started getting careful about it around 2013-4 as the winds of change began blowing, focusing on long chains rather than blossoming off of only a handful.
it was extremely common around 2005-2011 as the “semantic web” was blossoming, big data was new, and we all participated in a great open experiment as broadband internet got more common.
remixing rss feeds was one of my favorite things rip rss 2.0.