When did you sign up and started playing on freebitco should be the question, 5 years ago should like 2019 i believe, now, the comment you quoted is from way back 2013, and freebitco was launched in 2013, and in the same 2013, bitcoin was still very cheap compared to 2019 when you signed up and maybe start playing on the site.
common sense should maybe tell you that 2013, winning constantly was very possible since the site was still very new, and bitcoin which is the anchor currency for the platform was also very cheap at the time, so it should be of no surprises to see users from back in the days talk about winning and making multiple withdrawals, where as users of nowadays hardly win anything from the same games.

Like myself i joined freebitco in 2016 or 2017 i suppose, played dice on the site for like a year or a bit less, won a couple of times but never won enough to withdraw, that is, i never made a single withdrawal from the site, until i stopped playing both dice and the Hi Lo games, decided to focus only on lottery and faucet.