You say that making one bitcoin in month is easy? It really isn't easy, even if you have starting amoubt of 1 bitcoin or 0.1 bitcoin. Every way that lets you earn that much in onr month is really risky, trading is probably least risky way to earn that much, but if you don't have skills or knowledge you won't earn that much in month, you will probably only lose at start.
Its not easy to earn 1 btc even from trading as you cannot control the price movements and you never know when the coin will pump and to make good profits in trading you also should have decent capital to invest and again there is no guarantee that you will make profits each and every time.
Yes. its not easy to earn 1 btc from trading along. You got to be very lucky to hold a coins that suddenly jumps the price is x100 folds to gain 1 btc. Even if you join the so called pump and dump groups, its hard to get 1 full btc in a month. I'm not sure though about alt coin signature, I'm not a fan of joining signature campaign on alt coin so I don't know if its possible.
Some claim that the payment in altcoin signature campaigns are actually really good. You can earn up to 1BTC per campaign. The only problem is that the managers there aren't really that active unlike in bitcoin signature campaigns. If you're willing to wait anyway, then go ahead and join altcoin signatures. You have to watch out for how much percentage of the total fund will be allocated for the signature campaign. Sometimes it's really low. I joined some of the twitter campaigns and from what I got, I can say that they pay really well.
The only disadvantage of altcoin signatures is the fact that you don't know if they are actually going to pay or are they going to run away. Remember in the past, ICOs used to run away after accumulating enough money. Altcoin campaigns run mostly for more than a month and then you have to wait for another month before the lazy managers update the spreadsheet. Then a couple more weeks for the distribution.