Sanity check filtering heuristic

Cross check subreddits in graph (recently active/connected) against subreddit of the day featured subreddits. Presumably, if a subreddit got featured, it is interesting enough and had enough activity (at least at one point) to be worthy of some attention.

* How much overlap is there between my subreddits list and SROTD?
* For each SROTD featured subreddit that is missing from my dataset:
* Is the subreddit private/quarantined? If so, we don't care.
* When was the submission? Comment? Determine if we need to re-evaluate how we define subreddits as "active".
* What was the last month during which the subreddit had an active user? Determine if we need to re-evaluate how we define subreddits as "active".
* How long ago was the subreddit featured? Should I use "recently featured on SROTD" as a filtering consideration?
* How many subscribers does the subreddit have? Should there be a threshold where, regardless of activity, high subscribership subreddits get included?
* What is the mutual user ratio of the strongest edge connected to this subreddit? Is the 10% ratio I'm using perhaps too conservative and should be revisited? It was chosen qualitatively, after all.

Goal is to answer the question: Are the filtering parameters I'm using effective, or am I dropping a significant segment of subreddits that should probably be included?