Its not too risky if you are using it everyday in some capacity which every long term member would be.   As far as development there has been new websites that use FUN but they are separate to the main site, I think they advertised on the main site.
There is going to be a two tone view to performance because so far as I read the token itself is deflationary (a good thing vs inflationary etc.), ie. the base currency is rising in its unit worth and every burn of the token is doing that deliberately.   I wont go into it too much but its relatable to many types of assets you could buy, however what is quite normal is the market price is different to that base worth.   I think the profits they refer to is the site itself in normal operations, so you get the wheel spins and that payout is random but also they are burning tokens which does in turn help your base case to hold FUN its a good thing basically. 
   Theres the utility and kind of yield you can get to FUN, it gives benefits so that is a worth.  The base amount of units of FUN is a capital worth but always the market can do whatever it likes separate to that because a market has to server the supply and demand for the token and various amounts of liquidity.   If everyone buys and holds its going up, if everyone sells the price to excess supply in market vs demand will go down and all that is normal.  We could be talking oranges and the price of and it'd be the same but it doesnt mean you arent just good to use it as well.