If I've taken an undergrad Sipser-based theory course, and that's basically the extent of my knowledge, what tags should I follow to maximize the number of questions I can meaningfully answer on this site?
1$\begingroup$ If that's your level, you'll probably be better at home on Computer Science. $\endgroup$– RaphaelSep 26, 2018 at 7:57
How about some of these:
cc.complexity-theory, ds.algorithms, np-hardness, complexity-classes, fl.formal-languages, automata-theory
Depending on your math background perhaps also graph-theory, co.combinatorics.
A couple of caveats:
As the most popular tag cc.complexity-theory gets about 1 question a day, compared to large sites like Math.StackExchange and Stack Overflow there is less of a need to follow only particular tags.
The level of questions may be somewhat high as the site is for theoretical computer scientists and researchers in related fields.
1$\begingroup$ "The level of questions may be somewhat high as the site is for theoretical computer scientists and researchers in related fields" Good point, I should ask this on CS.SE instead. $\endgroup$ Jul 13, 2018 at 2:42