Nope, because I should be able to come into the AoS thread if I'm watching AoS and not get spoiled about a movie that's not even available for rental yet. If the show were dropping Endgame spoilers left and right, that'd be a different situation.I'm a big spoilerphobe myself, more than most, but I think there's an argument that since SHIELD takes place in the MCU after the events of Endgame that there might be an exception to be made. That said, for politeness sake I don't mind adding a spoiler box out of caution when asked.
Note that we didn't make an exception when AoS and Civil War were running with the same big reveal. That's why the MCU Spoiler-Heavy Speculation Thread was created.