The gemot has few rules or guides, as befits a place for scholars. It is not an encyclopaedia (we have an Englisc Wicipædia for that).
Spræc and gereord
The main language of the site is Modern English, but compositions are welcome in Englisc; Old English.
No dialect of Englisc is laid down, though one ought to avoid the later forms where classical grammar has begun to break down.
Authentic words are better than new-made words. New-made words cannot be avoided by revivalists writing of modern things of needless to say. This gemotstow can be a place to develop such words and phrases.
Macrons are not authentic so there is not need for them here. In teaching of Englisc they can be helpful though, and so no objection can be made to them in academic material.
Þ and Ð
Þ and Ð were used interchangeably in original texts, and writers were not consistent, even across one work. No preference is made therefore. If an article title uses one of them, it is better to use Þ at least when the first letter of the title. If someone might assume one spelling but another is used in the title, you can use a "Redirect" to lead him to the right place.
Ƿ and W and swa forþ
Ƿ, ƿ (wynn) is used in texts where we would usually use '"W"'. Almost every printed source uses W though and so we do here. There is a place for ƿ in quoting inscriptions and original texts, but not in compositions.
Ȝ (yogh) is found in Middle English, though it takes its form from the way miniscule g was written in Englisc texts. It should not be used except in quoting a Middle English text which uses it.
As at any gemotstow, guests are welcome to feast with all, and must keep the peace of the hall. There shall be nothing unlawful, nothing indecent, no swearing.
In geographical references within Britain, the United Kingdom should be treated as a whole.
Use whatever divisions and subdivisions are appropriate to the land and to the period described. In France, the traditional areas of Normandy and Brittany are useful geographical references.
Anyone who commits friþbræc, being disruptive or abusive, may be banished from the gemot (or banned in wiki terms).