For me, my choice is to leave threads so I can tie off and bury the thread ends,
both at the beginning of stitching and at the end.
To me, doing a few stitches and snipping off, just seems too dangerous, asking for it to unravel later.
Besides, I do not like seeing a lot of extra stitches, preferring nice clean stitch lines.
As I say, these are my preferences ... find what works for you and what your preferences are.