Re: DS9's growing popularity
In some respects shows like DSN and B5 came out a few years too earlier, in so much as they had a story arc to them. Whilst that style of programme had been for a while it wasn't until a few years after DSN and B5 aired that there was a shift in what the audiance wanted from the shows they watched.
DSN has been for many years regarded as one of the more popular shows amongest fans, and regularly appears in the Top 2 shows in ST polls.
As for why people like it now, rather than when it was first on, a person age could play a role in what type of shows they like.
I think DS9 (and to a slightly lesser effect B5) may well have been responsible for the shift in audience preferences.
Soon oh soon the light, Pass within and soothe this endless night, And wait here for you, Our reason to be here...