The tipsters are not professional gamblers if you ask me. They are trying to make a steady income flow from the tipster work they are doing in order divide the risk element of gambling.
If I knew that I would be getting X amount of money for sure and I can gamble with the rest I would have become someone known in betting world as well. Also betting is not the only way of gambling. You can't be "professional dice player", its pure luck, maybe poker but those people out grow bitcoin space and go into stuff like pokerstars.
a part of them yes , they aren't professional and they aren't even porfitable sometimes so they do what they do just to have some referrals or get a fixed income from newbies
but that doesn't mean that all tipsters are like this , there are several professional ones that make a living by just betting
All are not gamblers but almost all are gamblers of their accent besides which few others are just analysts with the knowledge of gambling so both of these gamblers are available here on the forum to tell you and discuss with you different gambling strategies and basic knowledge regarding casinos games and sports betting as well. You will not feel any mistake here but opinions of different gamblers from which you can learn.