Part of the problem is that sportstalk doesn't rank in SERP and the reward system on Hive, in general, has never encouraged creators to produce content that will. Why spend time writing evergreen articles that drive traffic to the domain over weeks, months and years when the reward system pays out after 7 days? Probably better to just post your step count with a picture of a flower!
According to Moz.com this is sportstalksocial's top-ranking page in SERP with the keywords "Mario Gomez Injury"
Of course the footballer in questions name is actually Andre Gomes the Portugese midfielder not Mario Gomes the former German striker so not likely to be generating a lot of traffic!
Unless we are able to encourage users to create content that will drive traffic to the site then I think sportstalk's engagement numbers will be very much dependent on the price of BTC which is probably what we are seeing in the Alexa ranking above. Increase at the start of the year as BTC gained value and fall in the past 6 weeks as BTC passed its ATH.