I wish it took only two hours to write that post.
I have no precise statistics, but I guess more plausible figure is double of that time (research, editing, posting, proofreading, some back and forth communication to correct details with the support of the people working at the firm etc).

I am almost sure the most time-consuming OP is this one:
Everything you wanted to know about BTC options but were afraid to ask!

It took weeks to complete, and I guess active work on that easily north of ten hours.