I mostly use my iPhone and iPad to post, plus occasionally a PC. I never use their mobile site though and I've rarely experienced problems. I don't really dislike any of the ihub rules, except they probably need additional administrators.
I've not used Yahoo for much of anything, but I've been directed to their message boards which tend to be outrageous, posters can and do say the most outrageously rude / crude things.
I just read on another board today the claim of 100s of employees in one complex who are under assumed identities and are paid to bash public companies - and of course this was part of a PR released by a lowly pink sheet company. Just really ridiculous baseless no-information opinions - not a single word based on factual data.
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