I'm a moderator over at Robotics.SE. I've seen new-ish users in the past come to promote sites, products, etc. I've seen brand new users come in to post what is clearly spam (something along the lines of, "I think this is a great question, check out my answer at shady.url").
The problem I had today is a user comes in with a barely coherent answer, but the length of the answer is somewhat substantial (more than just the typical one-line spam), it addresses one of the points of OP's question, but it looks like it's written out of a bag of keywords or something.
I may have flagged the user as a spammer, or sent a warning, etc., but the user has a small reputation on a couple other sites where they asked a couple questions that got good answers (several upvotes and accepted answers), etc.
My concern is that I don't want to come off as insulting the person if English isn't their first language (or especially if it is), but I'm not sure what to do about this.
The question asked about how to build a fast quadcopter, and then the user in question answered with a bunch of text, including this closing paragraph:
Can Helium Drone Armour Help reduce weight? I think it would be cool to have clowns making balloon animal drones But the wind drag might defeat the perhaps or inhouse perhaps drones that walk on the roof.
Clowns making balloon animal drones? Or inhouse perhaps drones that walk on the roof? There were comments earlier about seeing the "Kalman-filter keyword on Stack Exchange," but nobody mentioned Kalman filter, that wasn't what the question was about, the question wasn't tagged with it, etc.
Should I make a notation on the user account that they're a potential spammer? This isn't the first time I've seen a user like this, where they are new and their question/comment seems to be a collage of keywords, but again I'm not sure how to handle this user in particular because they seem to be established on other sites.
:EDIT:
Here's the full answer:
I found a Kalman-Filter keyword here on stack exchange that may have something interesting also consider: Direct Drive vs. Indirect Drive.
There is a neat hex or octal shaft that "slips" with a kind of torque like counterpart grip. This makes like a plastic flywheel; A method would a eliminate a few gears.
Experiment - Perhaps drilling holes in the frame or making your own frame will reduce weight but comes at the expense of breaks of the chassis. You might need to tape holes to prevent drag.
I like the fact that you asked about overheating problems maybe you can bring a dry ice box to quick cool it when not in flight? I saw popsicle stick frames for standard drones on youtube. I wonder if a chip of dry ice would cool it in the air.
Can Helium Drone Armour Help reduce weight? I think it would be cool to have clowns making balloon animal drones But the wind drag might defeat the perhaps or inhouse perhaps drones that walk on the roof.
This is in response to the question, which was presented as a list of questions following an introductory statement:
Will this overheat (bad consecuences) if i let it drain the full battery at 100% throttle?
Will this fly at least 4 minutes under the previous conditions?
Should i get a higher C-rating battery?
As i can't find better motors of that size, is the only way to improve its speed by putting a 6S battery? and what would happen if i do it?
Should i put the 6inch props or 4inch? I know 4inch should get faster rpm changes but will it be noticeable at this sizes?