Are Facebook "Groups" of value?
Yes. Not all are, you need to filter out the crappy ones. You can make a lot of useful contacts there who can help you go further in your business. I use them as an extra add-on to this forum.
I'm talking about product research/validation and customer development. I'm an engineer, trained now as a health coach, just seeking practice clients (for free!) for one of my startups.
There are some FB groups that come with marketplaces (not all), where you can hawk your services there.
Why not try Instagram? Engagement there is generally a lot higher than FB.
If you're a health coach, you can try looking into the Fitness and/or Healthy Lifestyle niches there.
Probably do a (bi)-weekly paid video / IG Story shout-out on those repost accounts to offer your free services, I'm sure response will be decent.
Soliciting is generally a no-no in groups, but why not take the risk of being booted out
Don't solicit on FB Groups. If you get kicked out, you'll have burned the bridges and won't be able to make contacts there. I'm a member of a couple of Instagram and Wordpress hosting groups there. It feels very personal because you can check out their FB accounts and they're all real people.
Best thing is, things happen fast and you get to know what's hot up-and-coming, and use all these to your advantage (especially if it's an industry-specific group). Stalk the group, read their convos, get a "feel" of the ground.
Social media is not a joke. I still believe it's one of the best way nowadays to get the word out there.
The folks denouncing FB/IG are those who have not seen any success with it.
I mean, imagine if you've 250,000 real followers on IG with each post averaging 11,560 Likes and 2,800 Comments. Now, social media would suddenly feel fun again, doesn't it? LOL