I've only had friendly, welcoming help on here so far (not got the dog yet, mind!).
But I have also occasionally thought that people are not always being treated as respectfully/kindly at times - only at times - as we want everyone to treat our dogs. It makes me sad, tbh, and it also makes me careful about posting - I do post, but I feel careful.
There are many other areas on MN that can make me feel like that from time to time, mind you 
I love that people here give a chance to dogs that have been abandoned, abused, neglected. Sometimes, giving that chance means putting up with anti-social behaviour and re-training with patience and love. The same applies to humans....including people we might think are lazy/hopeless/idiots etc. Its always possible they are just exhausted/ignorant/stressed themselves.
I've worked with some of them, I've been one, I try not to judge or shame others. Though I DO get angry - thats not quite the same thing.
I'm not saying anyone should say 'there there it doesn't matter' to anyone mistreating a dog - of course not. I've learnt a lot from the anti-puppy farm threads, as much as I have from behaviourist threads, and I certainly don't have a problem with hearing from the front-line workers about how it is out there - much as I hate hearing it, its reality
.
Also, I have no problem with people occasionally losing their tempers, expressing strong opinions, etc. As long as either they stay respectful or, as we can't all be respectful all the time (especially when upset, tired and rushed), come back and say sorry for losing it.
At the end of the day, I just think people are more likely to listen, learn, come back and work harder to become dog-friendly if they feel safe.
sorry, longwinded!!