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.

Q: Question: I'm a non-native English speaker, and my automatic spellchecker seems to accept both therefore and therefor. Is one orthography preferred ? Is that a British vs. American difference ? Or an old vs. more recent orthography ? Or something else ?
Answer: Therefor means for that. For example: Here we sell guitars and accessories therefor. Therefor is one of a whole series of adverbs: thereof (of that), thereafter(after that), therein (in there), etc. If you are familiar with German - the Germanic sister of English - you can find a direct analogy there: for = fur therefor, for that = dafur (literally, therefor) Therefore, as you must know, means as a (logical) consequence.

A: yes
****
Q: Question: Whenever I hear statements like "It was a great deal for he and I" and "Call Karen and I in the morning," I die a little. Such solecisms, as Twain said in another context (Cooper's prose style), "grate upon the fastidious ear." Moreover, I know that these things will likely become accepted usage in time, if that hasn't already happened. As someone who tries to be careful with words and speech, I feel almost a moral obligation to hold the line against this kind of decline. I'm not a word snob; I say "ain't" when it works for emphasis, and so on. I've tried suggesting the grammatical alternative to the above constructions, but even when I phrase my suggestion in the gentlest possible way it never works well and I almost always wind up feeling pedantic and priggish at best, and at worst I feel I've alienated someone. What's the general opinion here? Is it best to just let these things slide or to take up the fight? In sum, is there a good way to promote good grammar, or at least protect it from the most egregious violations?
Answer: Does the grammatical faux pas compromise or endanger the communication, or is it merely annoying? (Annoying to you personally, of course. The speaker, and no doubt many others are perfectly happy with it.) Language can be a delight, but it is also, and to many, merely a means to an end. If you are with friends who enjoy language for its own sake and who want to improve their understanding and usage of it, a courteous and appropriate correction will be appreciated. If you are with strangers or persons with whom you have only a business relationship, then as long as the communication is not jeopardized you're probably best advised to bite your tongue and realize that you are a member of a small minority. Unless, of course, you really do wish to be viewed as a snob.

A: no
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Q: 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.

A:
yes
****