Recently I have seen an increased lack of judgement of on the expert server of when you should be taking off at an uncontrolled airfield, mostly with once an aircraft lands ahead of you. This should just serve as a mental checklist you should always run through before entering the runway to take off and it should apply to all servers.
In order to be properly cleared to enter the runway to take off consider these guidelines. To be sure you are taking off in the correct situation all the following guidelines should apply to your situation (IF only, real world has more factors)
Is anyone on final for the runway I am departing? Yes or No (If Yes consider 1a)
1a. If so, are they closer than 4-5nm from the airport? Yes or No (If No you can safely depart with an immediate take off)
Is anyone departing in front of you? Yes or No (If Yes consider 2a)
2a. Has the aircraft departing before you made their initial turn from the runway or is 3nm away from the opposite end of the runway? Yes or No (If Yes you can safely depart)
Has the aircraft on final landed? Yes or No (If Yes you may line up and wait but must consider 3a)
3a. Has the aircraft that landed cleared the runway? Yes or No (If Yes you may safely depart)
Has an aircraft announced that they are crossing the runway you will be departing from? Yes or No (If Yes you may line up and wait but must consider 4a)
4a. Has the aircraft crossing the runway cleared the runway? Yes or No (If Yes you may depart safely)
Is someone taking off from an intersecting runway? Yes or No (If Yes consider 5a)
5a. Did the other aircraft announce take off before you? Yes or No (If yes line up and wait but do not depart until the other aircraft has. If no you may safely depart)
Really it is simple to answer the basic question “Will I conflict with other traffic in the airspace?” Sadly the considerations I listed above are infractions I am seeing time and time again. Someone, not considering another person on final, someone nearly colliding with another person in front of them that took off before them, someone taking off over someone crossing the runway, someone taking off before someone has had the chance to clear the runway.
Dont take this as a shame on you thing, use this as a constructive criticism to make your piloting better if you fall into the listed instances of impeding traffic at uncontrolled airports.