135.215 addresses the requirement of operating limitations at the airport or outside of controlled airspace there must be an approach. Obviously you cannot operate under IFR if the airport does not have an approach.
I don't see where this prohibits filing a flight plan to an airport that has no approach and the conditions are VFR and no weather reporting. The key word seems to be 'at', not 'to'. This seems to make sense in that it addresses an issue of filing IFR to an airport where you think you can make up your own approach, which I suppose someone probably has tried to do over the last 100 years, or use an unapproved approach procedure.
The idea of filing to a nearby airport with an approved approach and cancelling and diverting doesn't make any sense. The intention is the same from the beginning, so why do all this stuff. If the weather is marginal I would not recommend trying it anyway. If you can file a flight plan to a point in space, which was suggested, then what's the difference? That point in space has no approach or weather reporting either.
135.219 is a similar situation. If the weather forecasts, reports indicate severe VFR, and the intention is to arrive VFR then this does not apply. Likewise with 135.225
135.213 allows the pilot to obtain whatever weather based on his own observations or those of other persons competent to supply.
OpsSpec C077 addresses the arrival in the terminal area under IFR or VFR and you follow the rules there as to whether the airport is controlled or uncontrolled, etc.
I still read this as being legally able to file to a non-IFR, no weather airport as long as you can determine the weather is VFR. Destination weather at the field must be obtained under 135.219; 217,and 225, which are all involving IFR operations. You cannot conduct IFR operations at that airport of arrival if there is no weather, however. You either accept the visual under C077 or cancel under those same provisions. If the intention is to conduct a VFR operation upon arrival,then I don't see where the weather applies, except under 135.213(a)
If you operate under OpsSpec C077, which most do, then Terminal arrival VFR allows you to cancel.
The conflict I see in C077 is that the first paragraph states that all turbojets are to be operated under IFR, which the exceptions of the Terminal arrival IFR and Terminal arrival VFR.
Please help me understand the falacy of this argument. Some of you out there obviously have more experience than me on this.