>I don't think I ever got a counterfeit item on Amazon.

Well you wouldn't, if the counterfeit's were any good.

More often than not, electronics stuff I've bought on Amazon have been unsatisfactory in some way, such as: counterfeit, was obviously returned by someone else, parts missing, obviously broken, etc.

Their return policy helps with this, but I don't have anywhere near this level of problem at Best Buy or Newegg. So I don't buy electronics on Amazon anymore, even if they're cheaper.

I've never seen an avalanche. The fact that people talk about specific mountains where avalanches happen (and not the avalanches in general), indicates to me that it's not as widespread.

This is what your argument looks like when put through reductio ab asurdum. It's certainly fine for you to be weary of these claims since your experience has been different, but to say this is indicative of anything when it's your 1 anecdote vs all of the other anecdotes is a claim with little force behind it

I utterly loathe the horrible photocopied books which sometimes turn up in place of proper printed editions. Have become better at spotting them, but it's a really unpleasant situation which dissuades proper publishers from reissuing out-of-print public domain works.

I've gotten counterfeits of other products (for example, I once got a counterfeit DVD boxed set), and a lot of products I look at will have reviews noting that they received a counterfeit and what to look for to make sure you're actually getting the product listed. It seems to be reasonably common.