Those requests are a Facebook thing and not a Zygna thing.
That being said, the owners of Zygna created something that was wildly popular and made them tons of money in the social space.
From an investor standpoint this was a golden goose as their value went through the roof.
There were a couple of underlying problems ...
They were blantently copying popular games (I won't go into the legal or ethical implications) and they banked on these games being a mainstream draw for a long period for income.
When their IPO launched the shares were dropped at $10 and in trading that day they went as high as $15 per share. The problem was that these shares were overvalued from the start due to the investor hype (not Zygna's doing in particular). They were a "must have" in the trading circles even though there was nothing indicating any long tern (or even mid term) stability of the stock.
Now the shares are trading at below $3 (the last time I checked) and the people who bought in at $15 are getting a nice haircut. This is the risk you take with something new.
On top of that, the company is starting to get hammered with lawsuits for IP infringment, many which show probable justification. This was happening prior to the IPO, so the people who tossed their money into the Zygna pot were either not paying attention or were hoping for a quick profit and then a bail on the stocks. In either case, they didn't forsee, or were purposefully blind, to what was happening and are now rather pissed off becuase their gamble (and investment is always a gamble) did not pay off.
In any event, this whole thing makes for interesting reading on sites which cater to the business aspect of gaming.