Im not sure. You can always email chess.com support and ask,
Abuse of the vacation feature in daily chess

Chess.com either does not have the capacity to enforce the fair play / stalling / vacation rule, or they just do not care about us relatively low level players and our complaints. I am very much in favour of those rules being applied very liberally, and with the benefit of the doubt always going to the player under scrutiny. But there are clear, crude patterns that constitute abuse on all of those aspects - I am happy to name names and share screenshots if this is denied. Patterns such as the one Pillsbury is complaining of, people in losing positions just running down their clocks every move into the last few hours or minutes. I even have one instance where the opponent admits stalling in the chat area, telling me that he does so in the hope that I end up under a bus so that I time out. All of these offenses I report to chess.com, without any response or improvement. They may as well remove these set of inter-related rules.
I love chess.com, but recently this has become such a problem that I sincerely have to reconsider my paid membership. It is preventable, and the least they can do is effectively police their own rules

Yes, I agree. I am not sure about the stalling / vacation rule, but I can talk about the fair play part.
I once played this player and I completely defeated him. After that, he demanded a rematch which I accepted. He spent between 4-6 seconds nearly every move, and played at a 98.9% accuracy. I am not saying that the accuracy means he is cheating, but the opening I played had been a tricky one and his ability to make moves against it in such a consistent amount of time is baffling. I reported this to chess.com but till this day, he has not been banned.

I also agree, and have made complaints myself in the past to this site. I have 3 months of vacation, and No One needs more then 3 weeks! There are many players on this site that do what he is complaining about.

I've been on both sides.
I've already suffered from players who dragged out matches for a long time due to holidays.
But in my case, when I went on vacation it wasn't to mess around like anyone else, but because of my tasks as an administrator of several teams and my work as an accountant, so sometimes when I logged onto the website to make the move, the departure was already I had less than 1 hour to make the move and thus automatically went on vacation.
As the system deducts 1 full day of vacation regardless of whether you are on vacation for 1 second or for 23 hours, it is often not worth making the move, which is why it is left for the next day.
Even though I never did this on purpose or in a clearly lost game, I already received a message from Chess.com support asking me to make the moves and not abuse the vacation, which was a matter of a few days, less than a week .
So I imagine that yes, Chess.com monitors this if people report it, they just have to be careful not to report it unduly, as sometimes the player may be experiencing problems and is only moving in games where he cannot take a vacation, Those who do this are not always out of spite or lack of sportsmanship.
An opponent of mine uses the vacation feature in an unusual way, and I would like to know the opinion of chess players on whether this would constitute a lack of fair play.
My opponent is in an inferior position, and after the 3-day time limit expires, he triggers vacation. Then when he wants to play the other games, he takes a vacation, executes the other moves from the other games and quickly puts the vacation back on, not playing the game with me and, I believe, with other opponents who must be in a bad position. Wouldn't that be a distortion of the vacation? Wouldn't it be the case for chess.com to rethink the use and frequency with which this resource can be used? Only on one day did my opponent activate and deactivate the vacation in three situations to execute moves from other games, without executing the moves from the games in which time was running out. The worst part is that when you deactivate vacations you still get about 2 hours, unless I'm mistaken. And so it continues indefinitely. I believe it is a valid suggestion for chess.com to think about improving the correct use of this resource.