I have BMX-style flat pedals on my bicycle. The right side pedal felt notchy and I bought some Phil grease and serviced it by cleaning and regreasing which turned out to be pretty easy. I found that the spindle where the BBs ride has a two pits I can see and feel with a screwdriver. The pits are less than 1mm in size. The entirety of the spindle is black except the track where the BBs ride and that portion is silver. I've got the pedals to where they spin freely and there is no notchy feeling even with the pitted bearing track.
Is there any harm in continuing to ride on these pedals in this condition? I assume the pits will grow over time and operation will deteriorate, but is it unsafe to continue riding like this? Or should I just replace these pedals now? I guess it just feels a bit wasteful to throw these away when they seem otherwise ok.
Something that surprised me when I disassembled the whole thing was that the bearings are not sealed. The bearings closer to the crank arm have an opening so the grease is exposed and the outside bearings only have a plastic dust cap. The BBs inside are loose.