Can you explain what they are did or what they are doing?
and also I could manage 1k accounts with certain programs. Its only like 5k-10k friends request a day.
mojstermiha made some good points. To be perfectly honest with you, I have not even tried adding friends since FB made these big changes. However, I can assure you that this topic has been discussed time and time again within this section of the forum (just search around).
From my understanding, FB is making it damn near impossible to add friends that you do not know and/or have never had any contact with in the past. I have heard you must be mutual friends with a person in order to add them as a friend, but then again I hear that this is false. So to be clear, I am not sure. What
I am sure of is a lot of stuff has happened in the last week (hell, even within the last month) and I am guessing FB is slowly scaling back some of the more stricter rules that they had first applied. This is generally what they do when they make big changes such as this one. They will implement some ridiculous filter that would make one think they might as well just shut down their entire website or remove the feature they applied these crazy changes to (for example, when they made overzealous changes to Events recently), but then they come back and loosen the restrictions they had previously applied.
At this point, unless you are manually testing things out for yourself, IMHO there is no real definitive answer. If you would like, by all means test things out for yourself, but from my past experience with FB...when they make big changes such as ones like this, it is best to just wait a while and let the smoke clear.
I hope that helped!
Cheers!