Congratulations on the positive and rewarding experience you have both worked so hard to achieve. Our lives have also been vastly enriched by the people that have come from points quite literally all over the globe.
I write only to express my hope that you would not necessarily let the expressed experiences of others change the way you handle guests. It sounds like you have a lovely way with people. (Or, put another way, you really know people, but love them anyway!) That being the case, I'd be willing to bet that if you have enjoyed the encounters with your guests, then so have they. No question about it.
I find this forum very valuable. There is much wisdom, and humor, and passion in the voices shared here. Even so, I like to approach the whole experience as a "buffet," from which (thankfully!) I'm not expected to take as my own everything that's offered.
Some people might have a problem with this issue, but you don't. So why not just know what you know, keep serving others, and try and relax into the enjoyment of each passing day, to the extent possible? It's an ideal, I know, but none of us deserve any less.
Heartfelt thanks to all for their contributions. You are the light of the world.