Github user okram commented on the pull request:
https://github.com/apache/incubator-tinkerpop/pull/278#issuecomment-201910150
You can see how computer-only strategies don't show up in OLTP.
```
gremlin> g = TinkerFactory.createModern().traversal()
==>graphtraversalsource[tinkergraph[vertices:6 edges:6], standard]
gremlin> g.V().explain()
==>Traversal Explanation
===============================================================
Original Traversal [GraphStep(vertex,[])]
ConnectiveStrategy [D] [GraphStep(vertex,[])]
IdentityRemovalStrategy [O] [GraphStep(vertex,[])]
IncidentToAdjacentStrategy [O] [GraphStep(vertex,[])]
AdjacentToIncidentStrategy [O] [GraphStep(vertex,[])]
FilterRankingStrategy [O] [GraphStep(vertex,[])]
RangeByIsCountStrategy [O] [GraphStep(vertex,[])]
TinkerGraphStepStrategy [P] [TinkerGraphStep(vertex,[])]
ProfileStrategy [F] [TinkerGraphStep(vertex,[])]
StandardVerificationStrategy [V] [TinkerGraphStep(vertex,[])]
Final Traversal [TinkerGraphStep(vertex,[])]
gremlin> g = g.withComputer()
==>graphtraversalsource[tinkergraph[vertices:6 edges:6], graphcomputer]
gremlin> g.V().explain()
==>Traversal Explanation
===========================================================================================================
Original Traversal [GraphStep(vertex,[])]
ConnectiveStrategy [D] [GraphStep(vertex,[])]
VertexProgramStrategy [D]
[TraversalVertexProgramStep([GraphStep(vertex,[])]), ComputerResultStep]
OrderLimitStrategy [O]
[TraversalVertexProgramStep([GraphStep(vertex,[])]), ComputerResultStep]
IdentityRemovalStrategy [O]
[TraversalVertexProgramStep([GraphStep(vertex,[])]), ComputerResultStep]
MatchPredicateStrategy [O]
[TraversalVertexProgramStep([GraphStep(vertex,[])]), ComputerResultStep]
IncidentToAdjacentStrategy [O]
[TraversalVertexProgramStep([GraphStep(vertex,[])]), ComputerResultStep]
AdjacentToIncidentStrategy [O]
[TraversalVertexProgramStep([GraphStep(vertex,[])]), ComputerResultStep]
FilterRankingStrategy [O]
[TraversalVertexProgramStep([GraphStep(vertex,[])]), ComputerResultStep]
RangeByIsCountStrategy [O]
[TraversalVertexProgramStep([GraphStep(vertex,[])]), ComputerResultStep]
TinkerGraphStepStrategy [P]
[TraversalVertexProgramStep([GraphStep(vertex,[])]), ComputerResultStep]
ProfileStrategy [F]
[TraversalVertexProgramStep([GraphStep(vertex,[])]), ComputerResultStep]
ComputerVerificationStrategy [V]
[TraversalVertexProgramStep([GraphStep(vertex,[])]), ComputerResultStep]
StandardVerificationStrategy [V]
[TraversalVertexProgramStep([GraphStep(vertex,[])]), ComputerResultStep]
Final Traversal
[TraversalVertexProgramStep([GraphStep(vertex,[])]), ComputerResultStep]
gremlin>
```
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