dfk41 Then they became fashionable and now, unless you use one then you are a pariah
I think there are at least two sides do this. I do agree with what you are saying especially when I read comments on Facebook and Reddit but….
For me, the bottomless portafilter is the only one I will ever use due to the fact I like to brew into mugs and whether it be for the sage, breville dual boiler, synchronika, vesuvius or the Evo. I cannot get a cup underneath with a spouted portafilter even if I wanted to use one.
It is not about watching the brew as I’ll never do. I think I do have a mirror that came with the evo but it is still in the accessories box!!
Also, I must be lucky as every time I read about the mess created by the bottomless portafilter I do not know what people are talking about and my puck prep is nothing out of the ordinary I grind drop into the portafilter and tamp. Currently using the manual 54.4 mm tamper. Nothing more. Nothing less.