do record cleaning fluids soften the treble?

Stanwal and Notec, just to be clear, I am not recommending that anybody play dirty records. If a record is dirty, it needs to be cleaned. Period. My comments are directed to records that are already clean (both visually and in listening) but haven't gone through a cleaning fluid/vacuum process. In my experience, a record that is already clean does not sound as good after the fluid/vacuum cleaning, so I don't do that type of cleaning routinely. I only do it where it is needed.

Also, I use a carbon fiber brush to wipe off the surface of each record before I play it, and I wipe the stylus with a dry brush before I play each record.

My position,experiences,impressions and approach to the issue of record cleaning mirror Salectric's to a tee.

I can understand a solution leaving behind things that fill the tiny grooves that represent the HF information. I'm not understanding how cleaning can soften bass. But then, that is not what I hear, and I prefer to clean all of my LPs. FWIW, YMMV, etc.

Rrm,
I felt that the sound did change and a little softening did occur. One day after playing a record it slipped and I grabbed so it would not hit the floor. I put finger prints all over it so I had to clean it. I had started doing a final rinse after cleaning my records but had not done it to this record because I had cleaned it a while ago. After a cleaning and a rinse I played it again, I found it had better all around sound, better hi's, bass was faster with more impact and the record had much better micro dynamics. I will now reclean the rest as I play them so I can do a final rinse on all records. I clean all record regardless, you can never tell how a record is handled by the manufacturer or dealer