For members with up to 25 Steem Power(SP), you can earn up to 25 Shadow Rank (SR). If you were above that we apologize but the new RC/HF20 upgrade has caused a lot of changes and we have to adapt as well.
Members over 25 SP and under 100 SP can earn up to 1/2 their total SP in addition to the base 25 SR. For example, a member with 50 SP may earn their base 25 SR + FLOOR(50 SP) = 37 SR max. A user with 100 SP can earn up to 25 + 50 SR or 75 SR total. Powering up above 100 allows the old system of SR to kick in and ensure you get even more!
This upgrade is due in part because of HF20 and our new anti abuse system! We had to adjust and make sure all our members were able to get fairly treated! This new policy will go into effect October 12, 2018 to give everyone a day to adapt!
Further reading on this topic: https://steemit.com/shadowbot/@shadowbot/shadowbot-minimum-sp-requirement-after-upgrade