I keep reading how clicker trained horses happily take wormers, are easy to bridle, learn new things quickly etc, etc. As if they have monopoly in having happy horses. Well I have had a variety of horses over the years and they all bridled themselves, all had unique personalites and were allowed to express opinions. I listened when they showed me they were unhappy with lunging or anything else.
We need to get away from this separation of training methods. We need to all work together to make the lives of horses better. We need to train without triggering fear. We need to understand horse behaviour and how they learn and how emotions are interwoven into behaviour.
Yes I agree positive reinforcement is better than escalating negative reinforcement. But we need to stop sounding holier than thou because we use more positive than negative reinforcement.
It is known that emotionally good use of positive reinforcement is beneficial, we also know that over arousal when using +R is not good.
If we can help one another instead of bickering then the horse would benefit. We ought expend our energies in helping those who really do use abusive methods find a better way. If that is teaching them the correct use of mild negative reinforcement and helping them read the horses emotions then is that a bad thing?
I strive to use positive reinforcement but we all know life happens and it is not always possible. We need to stop making people feel guilty, non of us are perfect and we all need encouragement as we learn.
PS not all pressure is negative reinforcement, not all pressure is bad. We may need to use different words to avoid confusion. Plus it is the horse who decides what is or is not aversive.
My journey to more positive training.
Positive Horsemanship. 
I totally agree. I am not a fan of clicker training except to get over something like clipping. Keep the blogs coming.
Clicker training done well is a good, I use it for new behaviours. Once learned I use a variable reinforcement so scratches etc as well as food. I don’t use a clicker for established behaviours but we do need to keep up the reinforcement – I use a verbal bridge with scratches (if he is itchy).
For systematic desensitising to clipping etc I don’t use a clicker but do use counter conditioning.
I try to use positive reinforcement as much as possible, what we need to get away from is escalating aversives and punishment.
For me anything triggering a flight response is to be avoided.