Interesting, not a specific point that I recall pondering before. However, upon reflection I see that I have used a preceding space on many, if not most, of my refs. For me, it is a matter of readability; my eyes are getting old and I found out last month that I've been getting cataracts in both eyes. Probably why lines of text tend to run together so that space separation is often helpful (that's why I like double spaces between sentences). I just checked back on some of my profiles and actually found one where the ref bounced to the beginning of the next line of text. Didn't seem to be any less understandable to me but I can see how some could find it difficult. So I will keep this in mind in future profile construction and as time permits, even on those already in place. Hopefully it will be easier after I get the lenses in my eyes cut out and replaced during the next few months. Just thought that this might address the accessibility topic.