Haha - this is definitely a "thing"
There are numerous blogs on it (most people recognize "the points guy") and there's a large Reddit group that has over 100,000 people in it discussing this!
As for us here...it's hard to say how many people are active on this thread at any given time. There's a bunch of us who are regulars and with "lurkers" included I'd imagine we have well over 200 people here discussing this
As long as you aren't actively pursuing a mortgage there really isn't a downside to this. A big thing to keep in mind is the cards we pursue often have very high interest rates so a key component to this game is to pay in full every month (otherwise the interest kills your savings).
Initially in the short term, you may see your credit score drop a little. However most people see their scores actually go up over time as their utilization goes way down (and utilization % is a large component of the credit score). We'd love to help get you started and give you some tips to formulate a strategy. If you give us the following info we can provide some great (customized) advice:
1) What cards have you applied for in the past 24 months (give us the month and year you applied or approx. if unsure)
2) Do you have any other credit cards that you didn't apply for in the past 24 months?
3) Do you have a spouse or significant other who is also interested in this game? (Maybe is an ok answer here)
4) What are your travel goals - are you looking to cover Disney trips, or do you have more extravagant plans in mind, or a little of both?
5) Do you have a business, or any sort of side hustle that could qualify as a business? (rental property, Sell things on Ebay, sell cookies, teach piano, consulting, etc.)... Some great offers out there are on business cards and you'd be surprised at how easy it is to qualify. If you're open to trying for business cards it opens up a whole world of AWESOME opportunities
Also - if you are on Reddit we have a private group setup there where we log some of the best advice and tips. It's only people from the DIS so it's a friendly group (I think about 130 members or so on last check). You're also able to support other DISers there by using their links or share links of your own. If you aren't on reddit it's easy to join at
reddit.com. Just send me a PM here on the DIS with your reddit username I'll get you access.