I am finding it hard to justify recommending TWP after this. Telling a Coworker they aren't invited into my house
The user has existing tensions with a co-worker, and one of the symptoms of the dysfunctional situations is needing to prevent the co-worker to attend an event organised at her/his home.
The most upvoted question is "solving the problem" by explaining how to assertively ask the co-worker to go away if she/he comes by.
Yes, this is a question for a problem which has a solution. Yes, the answer is a potentially valid solution. No, this doesn't solve anything. The user is going to have the same tensions in the office the day after, with more tensions arising from this new incident - and if it's not this party, it will be another event.
I think that the community is becoming disconnected by the workplace. In the workplace, solving a symptom does not solve the cause. People are people, and "questions with an answer" are spectacularly misleading, biased ways to shut down a problem without thinking hard about the big picture.