There are many different traditions in the world as well as traditions amongst families and friends. I don't mind either way if people decide to eat meat on Good Friday- but it does ink me a little if people go to great lengths to make a deal of the fact that they are eating meat. Like posts of FB with steaks with comments basically poking fun of others who choose not to eat meat.
I don't know if I will or will not eat meat tonight. However It had absolutely no impact on me if someone does or does not eat meat today. Just like many other life choices.

I like to think that I am mindful of others who observe this day as a holy day, and in doing is they choose to follow their Christian beliefs.