If it's not a ridiculous suggestion, what grammatical slovenliness do pedants NOT get worked up about?

[Tinker]

I'm not qualified to be a pendant but I cannot get worked up about the overuse of !!!!!!!!!!!!!! I mean, how else does one express excitable shrieking etc? Apart from being articulate of course.

I don't mind starting sentences with conjunctions in convos, but do object to it in formal situations - I had to edit a chemistry foundation course once and the author had a thing about starting sentences with "And", when she really didn't need to. That annoyed me.

(I also don't mind using commas before conjunctions as you can see, even though I know I shouldn't!)

I don't mind various commonly used nouns, that are actually plural, being treated as singular.

The best example I can muster is "data", as in:

"data is inconclusive" = fine by me

Whereas an uber-snoot pedant might say "data are conclusive" mightn't they (?), making them a Grade-A Arse that would probably introduce themselves as Wilberforce de Introvert an alumnus of the University of Poncenby.

However, reasonable pedants obsess, quite rightly, about its/it's, their/there/they're and apostrophe typos on menu's () and so on.

On a personal note, I don't stress about who and whom, mainly because I don't really know the rule. Does that make me a bad person pedant?

Multiple exclamations make the poster look a bit thick really.

Doesn't bother me starting a sentence on here in lower case, although I'd never do it out there

Doesn't bother me not using a full-stop on posts either for some reason.

It clearly doesn't concern me that I've started both those sentence without using the word 'It'.

I don't mind that I consistently use ".." to separate my thoughts within my posts as .. is not a real punctuation anyway.

I can put up with bad typing and !!!!! (which I must admit I do get carried away with sometimes).

I hate txt spk more than any other grammar/spelling crime, though.

Don't mind the whole who/whom thing as, like MrsSprat, I don't know the rule anyway!

I'm not that bothered about multiple !!!!!!! and ??????? as long as they are used in suitable places; not just at the end of every sentence.

Not fussed about pronouns and articles either ... or beginning the occassional sentence with a conjunction ...

Not a fan of split infinitives tho.

Oh, I am an habitual user of 'tho' and 'thru' ... but that could just be laziness

I'm shocked by the approval for multiple exclamation marks. Any exclamation mark is usually unnecessary; to throw in dozens is an affront against all human decency.

I don't stress about things of which I know not the rules
Seriously, don't care about typos, mistakes on MN unless they're on a pedant thread or amusing and it's appropriate to mention it.
Don't particularly get bothered by mistakes where it's nothing to do with the business, e.g. "carrot's" at a market stall. However if M&S were selling carrot's I'd be a bit at a professional company getting it so wrong.
She had lunch with Andrew and I always grates on me though - my own personal pedantry favourite!

I'm not keen on !!!!!!!!!!!!! but can cope with it.

I don't know when to use whom or who so I can't get upset about that. What is the rule?

I do not like commas before and and they always do it over here. They claim it is correct. I disagree, and I am English

Superbunny - it can be correct in certain circumstances - when you are linking two separate phrases in one sentence, it is acceptable to use a comma before an and (no, I know that's insufficiently accurate but I really don't have time to find the book, wish I did!)

Anyway, Americans often use apostrophes unnecessarily as well and claim it is correct - as in, living in the 1980's.

Yes, it can be correct when using commas to separate clauses. I can't think of an example,

But it is not correct to say, I ate blueberries, bananas, and something else. I often think I am living in the 1980s here.

Is that the Oxford comma?