And, of course, much less amount of countries which exceeded 7% limit of 55,000 which is 3850.The truth is there are some countries (not that many though) that received more than 3500 visas
Family members are included into 3500 (or whatever) limit
yes.
true. but don't forget that not everyone who wins DV Lottery gets a visa or continues processing. Even on this forum you could see cases where visas for 3/4 ppl family weren't granted.
that's why they are saying that the lowest case number you have, the better for you