Why would I do a Splinterlands referral? :D
Oh - I could make some money from it! - I have never used my referral link.
Funnily, when I joined six months ago, the people who convinced me didn't give a referral - if they had, it would have been a pretty decent income for them! :D
It's not like you're going to get rich from referring people, but it comes in handy when you just need a card or two when leveling up and you've earned some credits. All my friends I've signed up have gone straight to Splinterlands.com so I missed out on those 5 percent lifetime credits.