I mostly scan the question and when it becomes clear OP is newbie and uninformed in Bio (e.g. How is DNA Read), I adapt my general tone and include links to accessible (but credible) websites when using jargon. Although wikipedia as a basis for answer content is not OK, it is encouraged to use it to explain jargon*.
When OP asks a specific question obviously being well informed (e.g., Why is the Krebs cycle considered a part of aerobic metabolism if molecular oxygen is not involved in any of the reactions in the cycle), approaching this person with popular/baby-talk will be kind of insulting (I have been addressed with ask your teacher to bladibla being a postdoc :-). In this case, attaching links on jargon is still helpful for other interested folks, but the nature of the answer can, and probably should, be more technical (and therefore, less transparent). This may be not much of an issue if the topic is difficult to grasp for laymen anyway.
* Still I prefer linking to university websites and the likes over the use of wikis