get recent posts without being logged-in user

[poweruser]

Hi,
years ago, on phpbb boards I was able to start unlimited searches for unlimited new/recent posts.
https://www.foofoo.c*m/search.php?search_id=newposts
Just to see all new posts. ALL. Unlimited. amount.

Since a few years I (as normal user of a forum/board) I can only get a limited amount of recent posts.
If I login again or an error happens with the cookies, I get "0". (in words to read clearly: ZERO)
But there are. I am sure. (as I can see/get, if I search for "unread topics" [is this search also limited? (not tested yet)]

What sense does this function have? - serving newposts one time (you are logged) only.

https://www.foofoo.c*m/search.php?search_id=newposts

"you have Zero Posts" - the next after logging in call.

Is there (legal) search parameter to read new posts after a fist and only time? (even if logged-out or - getting new posts more more than once, logged in)

[Brf]

"New Posts" are those made since your last login, so it is undefined if you are not logged in.
Those who are not logged in can use "Active Topics"