I have now.
In regard to the law about not eating blood, there are specific ways of killing goats, cattle - set out. Thus, it is simply again - just doing what we are told. I don't mind eating a rare steak, whether it is cooked or somewhat rare, the content is the same. As long as I keep away from eating blood directly, I feel that I am doing what I can to be obedient. I am a city person and have never lived in a place where I had to kill my own meat.
To me it is not a matter of fish containing blood. There is no edict for fish so to say. In that way, the fish you mentioned, can be eaten without any problem. Most people who eat sashimi, cut away the parts that look gross. If cooked or fried, the problem doesn't appear.
as someone having followed new testament for a while....
I look back on that episode of Peter on a roof top
and approached by an angel, with a sheet full of goodies
which Peter called unclean
the angel took all of it away
and then returned to offer again.....the same as before
again Peter said ....nay
the second time around the angel rebuked Peter ....
you declare what has been sent down from heaven.....unclean
and took away the offering ...not to return
not wanting to digress further......
I see Man as that creature given dominion over all
the command Thou Shalt not Kill
was to stay that dominion played against one's fellow man
might makes right
is not the way to go