Mine's set to 18 just 'cause it fits well on my Tv with Firefox set at a 133% magnification and makes the thumbs easy to sort out before I decide to click on 'em or not.
And yeah if you're wonderin I DO hafta put on reading glasses to read any kinda "printed" media these days. For most of my life I had 20-15 vision and now ...
You may optionally give an explanation for why this post was reported, which will be sent to the moderators along with the report. This can help the moderator to understand why you reported the post.