This is almost like talking politics. Lol
I'm still a firm believer in the Dutch Method of supplementing verse changing water. I have been doing this for years and will continue to do so as it works well for me.
I too have had my fair share of issues this last year but that was due to Portland changing its water supply and flooding my system with high tds and me not keeping an eye on my tds meter when making top off water. Funny thing is when everything went south I scrambled for answers and even sent out for a full triton test that came back almost perfect.
Remember what works for some may not work for you.