It is quite some time now and all the recommendation by everyone above are yet to come to fulfilment and is about four months ago that this thread has been open. I believe most people who made recommendation are just recommending the coins they are holding.
Of course it is because they have been experimenting with tokens that they hold until now. But it's best to look for more details about new coins that will generate large profits later in the future.
As of now it have so many new coins coming we dont know of which are they totally be potential coins. As as you said they have been experimenting the token they hold maybe it is true because of some coins are now are trying to become a shitcoins in no time and be going 5x price in a future.