Am I the only one wondering whether people who constantly decry any form of railroading and 'illusionism' actually [a] DM a game, have ever practiced what they preached and [c] have happy players?
I've played D&D under about tons of different DM's over the years, and next-to-none of them have achieved this zen-like campaign state where absolutely everything we did had an impact, and where the ultimate journey of the campaign was completely dictated by player action. On the contrary, all but a few of them ran us through stock off-the-shelf adventures, and of those that were left, only one managed a campaign that was anything except random and uninspired. Almost *all* of them, however, were great. None of them felt more, or less, 'right' than the next. There was always fun there to be had.
Railroad vs. sandbox vs. illusionism vs. whatever always seems to me to be an academic totem which reflects very little of my own experience as a roleplayer. Anecdotal but there you go.
I DM
I try to practice what i talk about
My players seem happy and state that they are happier playing now than many years ago before I thought about these issues.
They say the games are more fulfilling now than they were then.
Of course that is hard to judge.
Like many things it could be just that they are different so feel differently.
It could be also that like many things you might have fun with X if you didnt know about Y, but now that you had done Y, X seems like less fun. (ignorance is bliss type of idea).
It is all hard to say. I will say that the games have been relatively significantly (well no stats were done

We had fun in most all the games we ran (different groups too) but there were things that did bother us to some degree in the past (and are things that bug us now).
I am sure some things only bothered me in retrospect (I didnt really think about X, but now that i think about X i am 'sure' it bugged me...a kind of revisionary thinking that could be a simple illusion).