@ThaddeusB - hey, I reverted your edit on one of my posts changing their to his/him. I did keep one of the changes as there was an ambiguous pronoun, however "their" can be used for both singular and plural, so it was correct. I prefer the way it reads to using "his" unless the meaning of "their" would be ambiguous
@AJHenderson No problem, it is your post after all... "Their" is only used singularly in informal contexts, and in my experience only as a shorthand for "his or her." Thus, it reads as bad grammar to me in a formal/professional context, which is what I would consider SE to be. Hence why I changed it, but certainly I will respect your wishes.
@ThaddeusB yeah, understandable. I tend to try to go for ease of readability over formality. their doesn't require parsing the plurality to make sense. The only thing I'm not sure about is how it reads for an international audience. My checking seemed to indicate it would be well understood either way. I see SE as a professional resource, but I also prefer more conversational explanations for my tone. I'm more of a tuturor than a lecturer. ;)
thanks for the effort though
I just posted to let you know why I changed it since you did put forth the effort