Here on the Dis we can only speak for what happens here, not on other social media sites. Of course you are under no obligation to participate in anything you don't want to. If you would like to start a cruise meet thread here on the Dis, or post to one that is already created for your cruise, feel free to do so. With enough interest you may be able to start a FE Exchange here.
With that said, here is my opinion, FWIW. These Cruise Meets threads originally started to meet and get to know your fellow cruisers. Some hit it off and wanted to be table mates, some made plans for meets, and others even planned excursions together. I've been involved with some groups that met up once, were very casual and just said hi to each other around the ship. I've also been in some where we became friends, all dined together (almost 40 of us) and really did a lot with each other all hours of the day.
The FEs were something that grew out of that planning and became a fun little thing to do. I don't mean this to anyone in particular but I am seeing more and more of people just wanting to do a FE for the gifts and they make that so important, they don't care about cruise planning and anticipating the cruise with others. I can honestly say, I only remember a few of the gifts we received but the people I spent time with are still my friends here and on social media, we exchange Christmas cards, etc... We all have great memories of the time we spent together. IMO, too much emphasis is being put on doing a FE Exchange and the fun part of the planning is being overlooked.
So, I guess what I'm trying to point out is don't get so caught up in FEs that the fun and anticipation of the cruise is gone because you are getting upset/stressed. Enjoy your cruise!