How good is my recommender?
1265
Is my model any good, based on the diagnostic metric ($R^2$/ AUC/ accuracy/ RMSE etc.) value?
25381
Is it okay to have a good (not strong) recommendation letter from a well-known scientist?
5657
Instant edit approval for high-rep users
67290
Can trusted users be trusted to suggest tag synonyms without a score of 5 in a tag? (on smaller sites, not Stack Overflow)
128175
Could the favourites mechanism be extended to include comments?
151630
Am I using “suggest that” correctly?
145804
Is editing sources.list a good idea?
49172
Stats on what proportion of my review decisions match the review outcome
90123
Algorithm for rating books: Relative perception
94641
Reviewing suggested edit of own post after completing 20 reviews
81941
Can we make automatically-scaling reputation thresholds work?
22557
Choosing the best model from among different "best" models
57002
Querying Users who 'like' my Facebook Page
127995
How can I objectively check my search engine ranking?
23530
Accuracy of suggested edits review
13828
Canonical Post #2: What is the perfect, and how should I use it?
86202
What makes a good/valid +1 comment?