However, how many times do they kick YOU for blocking the group? 😁

Not once out of hundreds of groups and over 50 “I’m waiting for you friend Bearbow” occurrences.
What did happen many times is that people think I’m an idiot for writing such an lfg & merge on me thinking I’ll just take it lying down. There are a surprising number of people that just want to rush to Fractal God so much so that they don’t want to waste currency on Omnipotion and regular potions & that’s a crowd that overlaps a lot with the folks you were describing in your original post.

Example lfg: ‘T4s. dps, qdps or aheal / 3x5 frac.pots.’ I don’t hate quick-heals etc, but the point is that I can only play those 3 things, so whatever support joins I can fill whatever else is needed.