In my mind, signature campaign is an easy way to get started and earn some coins, but most campaigns are only open to high ranked users. some campaigns however, do accept newbies, like me. and i have noticed that most of those campaigns are about a new altcoin, and pays in that certain type of altcoin, which requires me to get a wallet of theirs. Any thoughts on whether its a good idea to participate in those campaigns or potential riskes?
It's a good idea to joined if you really want to joined. But your main point here is to learn since at your rank you can only get a cheap reward. But that cheap reward can turned into a decent one if ever those alts will bloom in terms of price.
As far as you know how altcoin life works, you can literally noticed if the coin will become a success even for a pump and dump scenario. About the own wallet of theirs, well sometimes it's really needed and you have to deal with it since it's part of the rules.