If Whaleshares already does this, then the code will be easy to find :-)

What do you mean by "dynamic inflation"? The "real inflation" rate, in terms of upvote value per SP has been analysed here. It is already dynamic in that it reacts to blockchain activity - any wild swings tend to have safety measures, such as the SBD print rate and tonsure (or haircut).

To start messing with the actual STEEM creation rate would IMO require a very good reason to do so!