blocks site allows you to look at how each transaction in the 18-block reorg was invalidated like blocks.p2pool.observer/tx/b9c17d37a…451b2dc625ba1cb9d2f4d6c352689c5ac7d

txid/tip1/tip2

it'll look at global output indexes and what comes up from each side. If you browse blocks from blocks.p2pool.observer/event/reorg_sep14_18/plot.svg that have invalidated transactions you can click on them to get to the relevant page

another example with more inputs blocks.p2pool.observer/tx/45a48c3ac…451b2dc625ba1cb9d2f4d6c352689c5ac7d

<barthman132:matrix.org> There hasn’t been much selfish mining from any of the pools.

only qubic has done selfish mining

and they haven't done so in about a week+

(plus a bit more before that)