They often post about unintentionally coming on too strong and bothering people with their intensity when it isn't intended or personal and they are just acting like who they are. I can empathize because there is an equivalent: I am 90 percent of the time not rejecting life as a general experience and not personally rejecting you. It is that some of the things and behaviors that fill you with life drain mine - sometimes a lot, and it would be a lot shittier of me to pretend or lie that it doesn't happen. There is effort to be made on both sides, and we each sometimes go too far to appease our instincts, in which cases a reminder to consider the other is warranted. But especially on an everyday level, I am happier and healthier than you think without being "drawn out of my shell". I am not enjoying my shell, either, or complacent in it. I am a different animal altogether: I do not have a shell.
I find it hard to get along with Sx dominants when what each of us needs to live is like a shock collar on the other person. Once again, nobody should be selfish, and people with different needs can collaborate successfully with equal, considerate effort. I am just airing my frustration with a small and extreme fraction of cases where basic needs are divergent to such a stressful extreme to both parties that the choice to collaborate in the first place wasn't worth anything it could produce. Some people just should not work closely, and I often am the person to see that first.
Besides outlying conflicts, I admire and respect Sx a great deal. I see the risks they take as courageous, though maybe just because I know how it would take guts for me to be like that because it's out of my type.