Yes, I did check the previous page, not the page before though. However, I did not do this on purpose as you seem to pick on me each and every times. Yet others 'incidentally' done the same, I did not see you comment on them. Sincerely.
I have commented on a number of people in the past as well, but only for people who have done so on a relatively consistent basis, and no offense but you have done so relatively often in the last few weeks/months.
Based on the watermarks in many of the photos you post, you seem to be getting them from mil.sina, yes? Keep in mind that many of the "high profile" photos found there are often posted there (like new pictures of J-20 with serial numbers) are often only posted there after they are first found on BBS which are in turn often quickly posted here by us.
I generally find it is a good habit to go back three to five days worth of posts to make sure what I'm posting has not been posted especially if I think it is very new... and if I am posting something that I think might already have been posted by others but which I have not seen, I would usually ask "has this been posted by anyone yet?" as well.
Just a word of advice.