Definition: Given the Question and Answer pair, detect whether the answer is acceptable or not. Denote acceptable answer as "yes", otherwise denote as "no". An acceptable answer is consistent with the context in question, detailed, long, and uses general knowledge of English. Answers that are not definite and suggest a variety of options are not acceptable answers.
Input: Question: Should e.g. and i.e. have periods, e.g. "e.g.", or no periods, eg "eg"? Should they be italicized, e.g. "i.e." or not, eg "i.e"? 
Answer: In formal contexts, I would go with "e.g." and "i.e.", with two periods and without a whitespace. The spellings without periods are quite popular, but informal. For example, Merriam-Webster does not have an entry for either "eg" or "ie". Wiktionary marks "eg." and "eg" as informal, and offers the following usage notes: Opinion is mixed about whether this term should be italicized as although it is Latin, it has become part of standard English, and whether it should be written with a separating space "e. g." as it was originally two separate words. It also offers the following usage notes for "i.e.": Opinion is mixed about whether the abbreviation should be italicized, or whether there should be a separating non-breaking space as in i. e.. ie is often found in current usage, and is perhaps now considered acceptable. Personally, I would argue that there's no need whatsoever to italicize "e.g." or "i.e.". Both expressions are extremely common in English, and have been for a long time. They are full-fledged citizens of the English language, and as such, they do not have to be italicized as if they were foreign words.

yes