Actually there is another, more depressing possibility though. The X-Files was shot in 4:3 aspect ratio and that classically cinematic aspect ratio is highly unfashionable today, to the point that even many people watching the series for this podcast are probably watching stretched or cropped versions in which the original compositions have been destroyed to fit their screen, by a 16:9 HDTV whose make-everything-fit-the-screen factory settings they either don't know how to change, or don't want to change, hating the fact there would be "black bars" on the sides of the original 4:3 and preferring to watch in highly distorted 16:9.

The most prominent and consistent use of on screen text in every single X-Files episode, aside from the credits sequence with its tagline, is the actual opening credits within the first few minutes of the episode itself, where you learn who starred in, wrote, directed, etc (please tell me Netflix did not delete those... that seems like a legally actionable mistake) and then the time and date logs which appear in the lower left of the screen. Both of these forms of on screen text (in comparison to the taglines, which are huge and centered on the upper middle of the screen) would have the strong potential to become mangled, off-centered or invisible if the viewer's TV was automatically cropping or resizing a 4:3 image to fit 16:9.

Rather than risk this outcome- or perhaps after receiving complaints from some of the way-too-large number of TV viewers who have no idea about these aspect ratio differences and may have complained to Netflix that the credits or location stamps "looked wrong" or were cut off (not realizing this was only because their TV was resizing 4:3 to 16:9 and destroying the original intended screen composition) one can easily imagine Netflix, whose commercial priorities are now its original series and other current TV programming, simply electing to delete all on screen text (although I'm not sure how easy this is to accomplish), cause hey it's just some old genre show nobody cares about right?

As with the subtitles issue, one could also grant them the benefit of the doubt that they deleted the hardsubbed text in preparation for a later-forgotten planned step of reintroducing that text in softsubbed form where it would automatically be placed in the right position over the image regardless of whether the viewer watched in the original 4:3 or in the reformatted (we need a word for this disrespectful process- today's equivalent of panning and scanning) 16:9.