Small blind is a pisser

[Talking Poker]

Exactly. I'll give you an example:

With 48, you can make a (non-nut) straight with ONLY:
567

With 58, you can make straights with:
467 (nut)
679

With 68, you can make the following straights:
457 (nut)
579 (nut)
689

With 78, you can make these straights:
456 (nut)
569 (nut)
69T (nut)
9TJ

The smaller the gap, the easier it is to make a straight.

Your turn: How list all the straights you can make with JT and how many of them are the nuts?

Now you'll see why people like JT so much (too much, IMO).