Never used it. Have no idea what it is. I generally have no use for “social media”. You see, I have an Actual Life.
Well, it's not actually "social media", but you wouldn't' know that since you don't know what it is and haven't used it. It is business networking, which has different uses for different people. I have a life too, and much of it involves working for a living. Having a way to connect with others who do as well, can be beneficial. I do use Facebook because it is a nice way to keep in touch with friends and family which are spread out all over the US and world. I use LinkedIn because it is a way to keep in contact with business acquaintances in a business, not social, environment.
Personally I'm not a big user, and I haven't changed that since the acquisition, nor has the acquisition seemed particularly visible. I don't pay for it, so maybe the paid tiers have changed. The free options seem about the same to me.