Why are you so much afraid of them? I have done railfanning at both BSB and LKO in front of these guys and they don't muster a word if you don't come in the way of their duties, be it LPs or Parcel guys.
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Even then, why don't you edit your photos? Just crop the image so that the board is in the center. Most of your photos are half occupied by platform itself.
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Here, in the 3rd pic, the board is in extreme top left corner and doesn't look any good.
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The problem also is you are adding such 3rd rate pics as loco and train pics, which are completely unsuitable in my opinion.

If you're not using a freaking DSLR at stations, along with not getting in their faces, railway personnel don't mind. I've taken photos at PRYJ during Mahakumbh when RPF were literally everywhere.

That being said, BSB has one of the nicest railway staff, and the ones at LKO never seem to mind, even when I was trying to set a perfect frame for the presidential train.
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I agree, some people aren't so easygoing around the authorities, but the photos can be framed better. Plus, I think photographing while trying to look like you aren't doing it rather seems more suspicious.

Siddharth has already told you what measures you can take to enhance the quality. So my two cents is, take the photo for keeping them, not just for the uploads.

@krik I just want you to say that as Railfan, You're putting efforts into covering different stations and trains. You just need to upgrade the quality of the pictures.

Earlier during my school days, I was also afraid of
RPF and ultimately got a side loco pics, but when you spend time you will get to know how the thing works. If you...
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have fear try some suggestions because I cope with these things.

Doing long Rf sessions at LKO like the station is far easier than BNZ, and LC. I use both a phone and a camera. If you're clicking a Loco pic, you have to be patient and wait for the crew to begin with the equipment inspection or paperwork inside the locomotive. That's the best moment for clicking a good pic.

For SLR Train Boards if unloading staff is there, they never say much, but still you want then you have to wait for them to leave that place. That's the only option or go for other Coaches.

Try to take images in landscape mode or before uploading images edit the images, put the images in the ratio of 7:5. Pic is perfect at this ratio for IRI.

The orientation of the images should be considered before uploading. You can also correct through the editor.

Try it and let us know.