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Yes, they don't need signature campaign. Freebitco is well-known enough.
Here are some reasons.
1. Many newbies start with freebitco faucets
2. Many people are advertising freebitco to refer new users. I have seen some users here in bitcointalk wearing freebitco signature using their referral link.
3. Freebitco is the oldest faucet I know. (If there is an older one, some one correct me please)
If any one still thinks that freebitco should run a signature campaign search "Free bitcoin" or "Bitcoin faucet" on google and see what is the first result shown.
maybe all the things you said are the reason why they actually should start a signature campaign! look at your comment, all over it you are calling this site a "faucet" but it stopped being "only" a faucet a couple of years ago. and ever since then their focus has been to be a proper gambling site with dice, lottery, betting, contests and even investment (mining).
now google "bitcoin dice sites" "...gambling sites",... and see if you could find this site.
Agreed.
It became almost impossible to stack satoshis on this website if you don't have any referrals doing the hard work for you. Without depositing any coins, you get 7 sats right now per click which means you need to click the button for 4285 times. You'll hit good numbers every once in a while so let's round it to 4k clicks. Click 10 times a day, means 1 year non-stop clicking to get 30k sats. 30k sats might become $30k when 1sat become 1$ that's true but on the other hand it is just $3 now. (not k, straight 3 bucks)
Last year I stacked nearly 50k sats all by myself in a few months by casually clicking. It is now almost impossible to to it.
They must have realized this and to make up for it, freebitco.in acts more like a casino lately than a faucet.
Online casino industry has a tough competition.
freebitco.in don't need any advertisements for their faucet business but they surely damn need lots of advertisement for their casino business, I agree. I don't think a big % of their visitors making bets on that website. They are more interested in the faucet rewards. To change that, they need ads.
Another solution is implementing the Lightning Network so people can withdraw small amounts like 100 sats. That would solve lots of problems.