IMHO you're right. If I find a fanfiction on my flist, I'll most definitely read it. It may take me weeks to get to this, if I'm in a hectic phase in my life but I will. I usually say what I liked about it, sometimes, when I know the person can bear critique, I leave comments about the parts that didn't work for my and I try to say why.

And I live in Eastern Europe.

So no, time zones are excuses for weak.