User blog comment:Edwin Shade/Set Theory/@comment-34434829-20180125193451/@comment-34434829-20180125212941

I think that allowing people to see everyone's progress over time is a very valuable thing. All experts were once amateurs, and every amateur can become an expert if he puts the time and dedication in.

Keeping the evidence for this process intact is a win-win for everyone. It gives the novices a process to aspire to and also allows the more experienced fellows to have pride in the journey they've made.