Discussion or active comminication  in the comminity can set the goal and direction that we are aiming together. Several dev team members can write the code better, buy thousands of comminity members sometimes provide insightful inputs to be coded.
What if the community don't accept changes you made? The code may not be adopted, or if the devs enforce the implementation community members will quit. Any of them is fatal to Steem; much more serious than some potential abuses by new code.

Theres no discussion or asking opinions to the comminity with HF17, while the new curvr code was being changed three of four times and ended up with reverting code. Is it really efficient?
Please stop only focusing on code and come to the community. They are valuable customer of your product, and the best marketer too. The reason why I am pushing the linerity is that while there are many dissonant opinons on other issues, it is the only thing the community members strongly agree for a change.