When we find something that we think it is good or better than other, we share it here.
No one stopped you from doing that, you can still do it. It just protects against the best payout not being chased, and if you found something what's the chances someone else will and the forum will be spammed with ref links and threads very fast.
The point of the forum is to contribute to the ecosystem of bitcoin and provide a way for people to discuss things also...
The thread was about a faucet, and Yes I was well aware that a referral link inside would/may lead to such action.
I passed through the similar threads in the section and I noticed that it was full of referral links in the initial posts. (check the most commented ones)
Did you check back with the topics of the other people on that board and were their posts deleted too?
Look at the history of a board to determine whether you can do it (and by history I mean stuff like a month ago) but most of it will be covered by the rules anyway.