you're too funny
If you recall, I said leave it alone and gave my reasons why. You can play a smart alec if you want to on someone else's dime. It is a waste of time to do the hole in the back just as it seems talking to you is as well. The slop will come the more you remove the pins and that goes for just removing the trigger group to clean it. If the slop doesn't bother you, fine, but it bothers a lot of folks. Is it a problem, not until the group can move around on you a decent amount, but the more you remove the pins, the more the slop will grow. If we were talking about a steel receiver, it wouldn't be a problem, but when you remove a steel pin from a softer aluminum receiver over and over, sooner or later the softer metal will wear. That ain't rocket science, just a fact of life.
I have seen more 22lr barrels ruined from cleaning them improperly than by not cleaning them at all for sure. Leave them alone until they really need it and then clean it how you want to, but a boresnake with the brush removed or weedeater string cleaner will do very nicely when pulled from the breech through the open bolt and you don't have to do anything to do it but open the bolt and lock it back.
I have also seen quite a few rifles with 50,000 rounds through them and they have never been cleaned and will still shoot very accurately. You just don't need to clean them like a centerfire rifle, but if that is what you want to do, go for it like I have already said.
How many guns have you worked on in your life other than your own? I have been smithing going on 9 years now. I have seen a good many come through the doors over the years and most that have problems cleaned them too much and scratched up the rifling of the barrel. Do us all a favor and leave them be and shoot them. If accuracy falls off, dramatically, clean it, otherwise keep on shooting it and enjoy it.
BTW, no need to say anything else about it unless you just have to, but you can PM me if you want too.