I deactivated my first account 8 years ago, but got back on to re-connect with my old pals and acquaintances from back in the day. For that reason, it was fantastic.
After another year, I realized that I can't actually say ANYTHING interesting on this platform without offending someone. There's a lot of variety in my crowd. I have the sense IRL to know that not everything is for everybody, but that doesn't matter much on Facebook unless you want to spend hours and hours hand-crafting subsets of your friends for different topics (I don't). And I have zero interest in posting selfies or status updates of what's going on in my life, so that made the platform exceedingly boring and a waste of time for me. It's a shame, because it does work really well for "connecting" with people (in the shallowest sense of the word).
The only thing worse than people who are offended by everything is having to be afraid of offending over-sensitive people.
There's a lot of variety in my crowd
Which is a good thing. It's how it always was. You surrounded yourself with lots of different people with varying opinions. It's how you learned things. It was called being an adult.
Ruth Bader Ginsburg and Antonin Scolia were polar opposites on the issues. But they were also very good friends. Because they were adults. They weren't children who had to surround themselves with familiar things that reinforce their own views of the world.
I remember in college, we were encouraged to seek out differing opinions. I remember a guy who once chastised me for not seeking a broad enough range of opinions. He said, "What's wrong with you? Don't you want to be challenged?" My understanding is that sort of thing would never happen on a college campus today.
Be who you are. If people can't respect you for having a different opinion, they're not adults, and they're certainly not "friends," Facebook or otherwise.
That's a rather simplified world view. Let's make an example: I have a bunch of friends who are deeply interested in medicine - a discussion about cancer, what it is, treatment possibilities etc. are a very appropriate topic. I also have a friend who's just been diagnosed with breast cancer. Having that discussion in front of her would be utterly insensitive.
Likewise, it's kind of insensitive to perma-gloat about your new great relationship in front of somebody who just had a divorce.
What topics we can deal with depends on our lives and what's currently going on. Paying attention to those circumstances in other people's lives is the kind thing to do, and has nothing to do with "being afraid of offending oversensitive people"
Remember that guy who gave you advice? He suggest to seek a broad range of opinions. You were in control when you sought out those opinions. Facebook takes that control away - you will see the opinions it considers appropriate for your stream, when it considers them appropriate.
And sure, be who you are. But that "adult" thing also includes respecting other people's boundaries, and social media makes that almost impossible.