I remember this place before it was fields, when it was the slag-heaps and dumps of the local asbestos mines, and this argument has raged since the mines were still productive.
If I one-star, and I will occasionally, I leave feedback as to why. I try to explain why a piece didn't work for me, and where possible, make suggestions.
Back in the day, I subbed fairly frequently with moderate success (I can claim the full set of FP/NiB/LA and ticker) but realised that even with regular practise, I was never going to be consistent nor did my style fit into the site's.
My advice to those who feel done down by the 1* fairy is ignore him/her. They've been here since time began, and a bit like Dr Who, probably regenerate every so often. You pay heed to them, you fuel their sense of power - you ignore them and they wither and die, much like any troll.
Tags I think should be only accessed for adding by the author, and definitely, definitely, bring back PMs. If the PM system is abused, then allow a 'report this poster' option and allow NAL to block or delete that person if necessary, but to penalise us all for the actions of a few is akin to a teacher keeping the whole class in at break because one person threw a paper aeroplane.