*What's your secret for massive gains during a pump in the cryptocurrency market.
There is no secret here but for you to be reading news regarding cryptocurrency and know how to read your trading chart very well.
*Are pump signal announcements legit for investors who want to take advantage of the current market trend?
Yes, some of them are legit but many are fake or weak. Nothing is better than learning how to analyse the market yourself to detect the right signal independently.
*What could possibly be the gains of pumps for any new or old cryptocurrency like Bitcoin?
For me, it depends on your risk affinity and the money you have for the investment/trading. By virtue, the gain is limitless for trading, but for investment, Bitcoin may not move so much in terms of the percentage gain of its value.