I haven't looked at the objection yet, but to be honest I didn't know it was possible to file an objection to an STA.
I did exactly as you described but looked under correspondence versus application info. It seems that in the past it was listed under correspondence (as well).
I hate to say it, but there are way too many LPFMs I know of that just string up some equipment, apply for a license and then go silent while filing for a minor change. I cannot always blame the LPFM as there are some other factors involved (ie: tower you have applied for taking on another client and no longer has room for the LPFM) The worst was the LPFM that got approval from the city to erect a 50 foot antenna. Once built, an influential citizen convinced the city to reverse the decision. You can spend your money trying to sue the city or take your limited resources and try to move to another spot, which they did but not before their CP was to expire.
There is some confusion about LPFM. It was never meant to sound professional, It was never meant to generate revenue. It was meant to give voices to groups who felt they were not being heard. Many have turned them into so called "Pro" stations. It was meant to serve niche groups in a community. Some of the most interesting LPFMs I've heard are from grassroot organizations, or show hosts with no radio experience.
So, this is a good reason to rip-off people who want to help and to just not pay people for products and services? Sorry. I'm not seeing it. If that's the case,i should've applied for one so I could steal a new car. My old one needs a transmission and getting a new one without having to pay for it seems better to me. (That's sarcasm, by the way.)
As for 'professional', I feel the FCC has an expectation of professionalism in operating properly utilizing professional standards but not necessarily 'polished' as major market station might sound.