Yes 'deconstruct' is a particular method of analysis that has nothing to do with plain ol' analysis or reading between the lines. It's annoying to hear people use it as a synonym for 'analyze' or 'unpack'.
Yeah this one annoys me too. It's getting to the point where the meaning is going to shift and "lay down" is going to become standard English - but I still find it jarring.
I think the idea is that your base is somewhere you travel away from / out of in order to do your thing, like a military base - so while I don't really like this construction, I can see the logic. Would you also object to "he looks after all our UK sites, working out of Havant"?
Not really - remediation is not just removing the mould, it is also dealing with the damage it's done.
Aluminum? Semi-trailer? They use different words... some of them are bound to have more syllables. They do seem to have a habit of treating nouns formed from verbs as is they were originally nouns and recreating the verb when one already exists, which leads to new words like 'burglarize' and the replacement of irregular past tenses with regular ones, as in 'broadcasted' or 'subletted'. Languages do differ in the extent to which they are noun oriented or verb oriented, so maybe US English is more noun oriented than UK English., but I've noticed that (can I say this?) that Americans use more syllables than Brits for the same concept...